TEXT SUBMITTED FOR PUBLICATION – STOPFORD’S REPORT NOT INCLUDED HERE

 

EFH 95 - Forehill, Ely, Cambridgeshire

 

Ceramic Building Materials

 

 

by S Garside-Neville,

with Dr J Stopford,

 

 

1.0 METHODOLOGY AND INTRODUCTION

A total of 16.59kg of cbm was retained from the excavation.   There are also site records of discarded material. Judging by the measurements recorded on site, much of this was probably medieval or post medieval roof tile.  From the retained sample it is evident that there were at least 21 fabrics associated with floor tile, roof tile and other ceramic items.  Due to the on-site discard policy, it is only possible to make broad observations about any association of fabrics and forms with phasing.

 

In general, the sample was quite fragmentary, which means that there are few complete measurements available.  The fabric, weight and measurements of the sample submitted to the specialist were recorded on a pro forma.  The data was then entered onto a computer database to assist with analysis.   Details of the ceramic building material discarded on site were also entered onto the database.

 

There were two fragments of Roman material (combed box flue in a 15-16th century phase, and imbrex roof tile in a 11-12th century phase), but the bulk of the sample was medieval or post medieval in date.  It comprises roof tile, floor tile, brick and specialised items.

 

 

2.0 FABRICS

The fabrics of the ceramic building materials were observed and described used a x10 hand lens (Table 1).   Twenty-one fabrics were identified, but it is possible that some of the fabrics are actually from the same source and merely variants.  Most of the fabrics associated with plain roofing tile appear as early as the 14th century.  Several of the fabrics are refined and glazed, and may be  associated with the pottery or floor tile industries of the area.  In particular, Fabric 19 occurs as peg tile as well as floor tile. The floor tile is a product of the Bawsey kiln in Norfolk (see section 5.0 below).

 


Fabric

No.

Forms

Earliest Date (from

 phasing)

Description

1

Plain

14-15th

Pink-orange; medium coarse texture; silty bands, frequent oolite; occasional quartz; frequent limestone

2

?Water pipe

15th

Light brown; reduced core; medium texture; occasional quartzite, occasional flint; quartz; occasional limestone; ?pot fabric - similar to Ely pottery of 15th century

3

Ink stand or palette

U/S

Light orange; very fine texture; occasional silty bands; occasional limestone voids; occasional ?grog

4

Plain, Peg (x1 peghole) , Ridge, Stepped Crest, Floor, ?Compartmented tray

15-16th

Orange-red, with reduced core; some times yellow-green or brown glaze; medium texture; limestone, frequent quartz; oolite

5

Floor

15th

Light brown; fine-medium texture; silty bands, occasional shell; quartz; limestone, grog; flint

6

Floor

15th

Brown; reduced core; medium coarse texture; frequent quartz; occasional shell; occasional flint; occasional silty bands; occasional limestone

7

Plain, Peg, Stepped Crest, Ridge

15-e16th

Orange-brown; reduced core; some times dark green glaze; fine-medium texture; occasional mica; quartz; silty bands; grog; occasional limestone voids

8

Hip, Plain

18-19th

Cream-red; reduced core; green-brown glaze; fine, hard texture; frequent limestone voids; occasional oolites

9

Plain, Crested, Ridge, Peg

15th

Orange; reduced core; some times green-brown glaze; fine texture; frequent quartz; occasional oolite; occasional limestone; ?pot fabric - similar to Grimston ware

10

Plain, Peg (x2 pegholes), Ridge, ?Hearth

14-15th

Brown; medium coarse texture; some times yellow glaze; frequent quartz; occasional grog; occasional limestone; frequent oolite voids

11

Plain, Peg (x1 peghole) , Ridge

14-15th

Orange; reduced core; some times green glaze; coarse texture; frequent quartz; occasional grass voids; oolite; grog

12

Plain

14-15th

Light brown-orange; coarse texture; occasional silty bands; frequent quartz; grog; limestone; oolite

13

Plain

14th

Light brown; reduced core; fine texture; occasional large shell; occasional flint; occasional mica; occasional quartz; occasional limestone voids; occasional grass

14

Plain, ?Trough

15-16th

Cream-yellow; fine texture; silty bands; occasional grog; limestone; occasional clay pellets; limestone voids

15

Plain, Ridge,

15-16th

Yellow-pink; fine-medium texture; frequent silty bands; clay pellets; occasional grog; occasional limestone

16

Pan

18-19th

Cream' with occasional red specks; fine texture; occasional quartz; occasional grog

17

Pan

18-19th

Red; fine texture; silty bands; occasional grog; occasional limestone; mica

18

Pan

18-19th

Orange; fine texture; very fine sanding; occasional mica; oolite; grog

19

Plain, Peg (x2 pegholes), Floor

15-16th

Brown-orange; medium texture; occasional silty bands; frequent quartz; occasional limestone.  Floor tile comes from Bawsey kiln

20

Plain, Ridge, Floor

14th

Light brown-grey; green-brown glaze; fine texture; frequent well-rounded limestone; quart; ?pot fabric - similar to pot of 13-14th century

21

Plain

14-15th

Brown-orange; brown glaze; medium texture; quartz; occasional limestone; quartzite; occasional grog

Table 1 Ceramic building materials fabric descriptions

 

David Hall, pottery specialist for the Forehill publication has kindly commented on  three fabrics which seem to resemble pottery fabrics: Fabric 2 (?waterpipe) seems to be similar to Ely pottery fabrics of the 15th century;  Fabric 20 is similar to Ely pottery fabric of the 13th-14th century; Fabric 9 looks very similar to Grimston Ware from Norfolk.  The presence of tile was not recorded at the kiln site at Pott Row, Grimston (Clarke, 1970).  However, a fragment of glazed roof finial in a 'reduced Grimston cooking pot fabric' is reported from King's Lynn (Clarke & Carter, 1977, 300).  Forms present in Forehill fabric 9 include crested ridge, ridge and peg tile.  The amount of fabrics present suggests that tile used at Forehill, and presumably Ely itself was obtained from a variety of sources.

 

 

3.0 ROOF TILE

 

3.1 Plain tile

Plain tile was the major medieval form of roof tile.  A flat slab of clay, it could be suspended from the roof structure by either by pegholes (pierced holes in the clay slab) or applied clay lumps, called nibs, or a combination of both.  In the case of Forehill, the only type found was peg tile.  It took the form of either two circular pegholes placed at one end (fig i) toward the corners, or one central circular peghole (fig ii), again at one end.

 

Phase

Date

Context

Breadth

(mm)

Thickness

 (mm)

Fabric

9

14TH

1229

186

18

10

9

14/15TH

214

0

14

0

10

14/15TH

935

0

14

0

12

15TH

837

0

15

0

12

15TH

892

0

15

0

12

15TH

1139

151

13

9

12

15TH

1215

0

16

0

13

15TH

730

0

15

0

13

15/E16TH

313

0

13

0

13

15/E16TH

330

0

12

7

13

15/E16TH

718

0

14

0

14

15/16TH

709

0

16

0

14

15/16TH

752

161

13

4

16

16/17TH

314

180

0

0

16

16/17TH

314

0

18

0

16

16/17TH

996

0

16

0

17

16/17TH

1073

160

15

0

19

16/17TH

753

0

14

11

20

17/18TH

418

0

13

0

23

18/19TH

206

0

12

19

Table 2 - Peg tile occurrence and measurements

 

Peg tile, with either one or two pegholes, first occurs during the 14th century phases on the site (Table 2).  As tile can remain on a roof for long periods, it is possible that the peg tile was actually in use during the 13th century before deposition. 

An Act was passed in 1477 that regulated the processes of plain tile manufacture .  The standard size was set at 101/2 inches (268mm) by 61/4 inches (160mm) by at least 5/8 (15mm) (Salzmann, 1952, 230).  The Forehill tiles from 15th century phases more or less conform to these measurements.    The tile measurements from the 14th century phase is actually broader than required by the 1477 Act.   

 

Lucas (1993, 157) in his documentary survey of Ely states that the brick and tile industry in Ely appears to date from the 15th century.  Plain tiles occur as early as the 14th century phases at Forehill (and may have been in use earlier), but this may mean that roofing tile was being imported into Ely from the surrounding areas.  Systematic recording and research into the ceramic building materials from Ely could help illuminate this.

 

 

3.2 Ridge tile

Ridge was used to cover the apex of a plain tile roof.  At Forehill, the ridge tile was glazed, and has some decorative crests.  There are two occurrences of a distinctive stepped crest, which has a dark green or yellow-green glaze (fig. iii).  Definite examples of stepped crests appear in the  16-17th century phases at Forehill, though fabric 7, associated with the stepped ridge tile, occurs as early as the 15th to 16th century.  Stepped crests may reflect a Flemish influence in domestic architecture of East Anglia, where there are numerous examples of stepped gables, perhaps introduced by immigrant weavers from the Netherlands in the late 16th-17th centuries (Dunning 1968, 220).   However, crested ridge tiles begin to appear at Forehill (albeit with missing crests) in the 15th century (Table 3) and may be from a different source. Decorative crests appear all over the country in a variety of forms that differ from region to region.

 

Other fragments at Forehill  are so abraded that the style of crest cannot be seen. There is one unstratified fragment which is not attached to a ridge tile, and has a white slip under a clear glaze. This is different from the stepped crests as it is curved and is of a different fabric.  It may have been part of a finial at the end of the ridge (fig iv).

 

 

 

 

 

 

 

Form

Phase

Date

Context

Thickness

(mm)

Comments

Fabric

CRESTED

 

U/S

0

15

Green glaze; crests missing; v shaped; frost cracked

9

CRESTED

 

U/S

0

0

Crest only; white slip; yellow glaze; finial

10

RIDGE

12

15TH

837

0

Pink colour; light grey fabric

0

RIDGE

13

15/E16TH

330

0

Abraded; glaze

0

RIDGE

13

15/E16TH

330

0

Abraded, ?glaze

0

RIDGE

14

15/16TH

891

11

Splashed brown glaze

20

RIDGE

14

15/16TH

632

15

Green glaze

11

RIDGE

15

15/16TH

1227

16

 

15

RIDGE

16

16/17TH

691

13

Sooted sanded side; 2 joining fragments

7

RIDGE

16

16/17TH

691

13

Sooted sanded side; dark green glaze

7

RIDGE

16

16/17TH

691

13

Dark green glaze

7

CRESTED

16

16/17TH

691

14

Dark green glaze, stepped crest; abraded

7

CRESTED

16

16/17TH

691

14

Dark green glaze; abraded

7

CRESTED

16

16/17TH

314

15

Stepped crest; yellow-green glaze

4

RIDGE

18

16/17TH

624

14

Brown glaze

4

RIDGE

18

16/17TH

624

14

Brown glaze

4

Table 3 Crested ridge and ridge tile occurrence by phase

 

 

3.3 Hip tile

Hip tile covered the apex in the angle of a hipped roof.  One example was retained from 18-19th century phase, but could be medieval.

 

 

3.4 Pantile

The pantile from Forehill occurs in an 18-19th century phase.   There are three fabrics, two of which are red or orange, and the third is yellow (Table 4).  It is possible that the colours were combined to make patterns, as often seen on the Continent.

  

Phase

Date

Context

Thickness

(mm)

Comments

Fabric

23

18/19TH

206

14

 

17

23

18/19TH

206

18

Yellow fabric

16

23

18/19TH

206

20

 

18

Table 4 - Pantile

 

 

40 HEARTH TILE?

There is one fragment of possible hearth tile or brick.  The fragment, from context 1133, is 31mm thick and has a reduced fabric 10.    It occurs in a 14th century phase.

 

 

 

 

 

 

5.0 FLOOR TILE

by Dr J Stopford  (text not included in this web version)

 

6.0 BRICK

None of the bricks from the site were retained; however measurements were taken (see Table 5) and occasionally a colour description was noted in the site records.  The earliest context where brick is recorded dates from the 14-15th century, but no measurements were taken.  Most of the measurements recorded can probably be assigned to between the 14th and early 16th century (Lloyd 1925, 89-100).  Dating bricks purely by measurement alone is quite difficult as regional variations need to be taken into account, both in measurements and manufacturing processes.  However, generally-speaking, brick is longer, broader and thinner during the medieval period.

 

Phase

Date

Context

Length (mm)

Breadth (mm)

Thickness

 (mm)

13

15/E16TH

330

0

0

47

14

15/16TH

752

240

135

55

18

16/17TH

396

240

120

55

18

16/17TH

396

270

130

60

19

16/17TH

753

0

0

60

22

17/18TH

516

240

105

50

Table 5 Brick measurements and phasing

 

 

7.0 MISCELLANEOUS ITEMS

There are several fragments which evidently had specialised uses:

 

7.1 Water pipe?

The identification of these items as water pipe is very tentative.  The fragments are obviously part of a tube shaped item.  The pieces seem to be coil built, and perhaps finished on a wheel.  The fragment walls are quite rough and sag a little in places.  Two fragments are knife trimmed at the end and may be part of a socket fitting (fig v).  Dunning (1967, 86-89) reported on water pipe found in Ely during excavations at Market Hill in 1964.  That example was glazed and had knife trimming on the outside surfaces.  The Forehill fragments are neither glazed, nor knife trimmed along the body.

 

7.2 Compartmented tray?

Several fragments of  this tray came from context 194, assigned to a 16-17th century period on the site.  It has various shapes cut out of a clay slab which was either square or oblong in shape, and is 42mm deep (fig vi).   It may be a compartmented tray, used for small cakes or confections, similar to the 14th-15th century example illustrated in Cunningham and Drury (1985, 79, fig 48.6).  However, the Forehill example has a green, bubbled glaze and some of the compartments show traces of a white deposit around the top.  It may be that the tray has been reused.

 

7.3 Inkstand or palette

This unstratified fragmentary piece has one complete circular, shallow hole 55mm across and 27mm deep, and there are two other incomplete holes which would have been of similar size (fig vii).     There are two other holes, one measuring 16mm across and 23mm deep, and the other 17mm across and 17mm deep which tapers inward.  There is scoring between the holes.  The depth of the piece is 32mm.  An example of an inkstand from Byland Abbey in North Yorkshire shows similar features, though in a different configuration.   The small holes were used to stand quill pens, while the large holes contained either ink, water or sand for blotting ink (Dunning 1961, 307).   An alternate function may have been as a palette for mixing pigments.  Due to traces of what appears to be white mortar, it is likely that the Ely item was reused.

 

7.4 Trough

This item is in a typical Cambridgeshire yellow fabric, and was found in Phase 16 dating to the 16-17th century.  It probably had two compartments, and has a small nailhole drilled in the side of the remaining one (fig viii).

 

 

8.0 THE USE OF BRICK AND TILE ON THE SITE

It is evident that ceramic roof tile, in the form of mostly unglazed peg tile, was deposited in Forehill during the 14th century.  It is likely that tile was used on buildings at least as early as the 13th century.  The medieval buildings also had glazed, decorated crested ridge tiles.  A single hip tile points to the presence of a  hipped roof line.

 

Bricks were certainly being used in Ely during the 14th century (Hall, 1996, 37), which is reflected in bricks recorded at Forehill from 14th century phases.  It is likely that these were being used in walls and hearths.

 

The fragments of floor tile present are mainly very abraded or burnt, and show signs of reuse.  The earliest date that the floor tiles occur is the 14th century.  Either they were removed from a nearby high status building for reuse, or perhaps small numbers were used to decorate a small section of floor or hearth.

 

ACKNOWLEDGEMENTS

Thanks to the people at the Medieval Pottery Research Group meeting in May 1998, and to Roy Friendship-Taylor, for their useful comments on the miscellaneous items, which gave useful avenues of research.   David Hall provided useful comments on three of the tile fabrics.

 

BIBLIOGRAPHY

 

Clarke H, 1970.  'Excavations on a kiln site at Grimston, Pott Row, Norfolk'   Norfolk Archaeol 35 (1), 1970, 79-95

 

Clarke H & Carter A, 1977.  Excavations in King's Lynn 1963-1970 Society for Medieval Archaeology Monograph Series No. 7

 

Cunningham C M & Drury P J, 1986. Post medieval sites and their pottery: Moulsham Street, Chelmsford Chelmsford Archaeological trust Report 5, Council for British Archaeology Research Report 54

 

Dunning G C, 1961. 'A medieval pottery inkstand from Byland Abbey' Medieval Archaeology V, 307, pl XXXVI

 

Dunning G C, 1967.  'Medieval pottery roof-fittings and a water-pipe found at Ely: descriptions of the roof-fittings and water-pipe'  Proceedings of the Cambridge Antiquarian Society Vol LX, 81-89

 

Eames E S, 1955.  ‘The products of a medieval tile kiln at Bawsey, King’s Lynn’ Antiquaries Journal 35, 162-81. 

 

Eames E S, 1980.  Catalogue of medieval lead-glazed earthenware tiles in the Department of Medieval and Later Antiquities, British Museum, 2 vols.

 

Lloyd N, 1925. A history of English brickwork H Greville Montgomery (reprinted  1990,  Antique Collectors' Club)

 

Lucas R, 1993.  'Ely bricks and roof-tiles and their distribution in Norfolk and elsewhere in the sixteenth and eighteenth centuries' Proceedings of the Cambridge Antiquarian Society LXXXII, 157-62

 

Salzmann L F, 1952.  Building in England to 1540 Oxford University Press (reissue 1992, Sandpiper Books Ltd)

 

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