Types of Royal Worcester Coddlers

In order to differentiate between different Royal Worcester (RW) coddlers with the same or similar pattern, We use a combination of characteristics of the coddler. The nomenclature of "types" is Bruce's. As more data becomes available to us, some of these types may change. There are twelve major types of RW coddlers, which will be designated with an Arabic numeral (Type 1 through Type 12). There are variations of the major types that we will call sub-types. Each unique subtype will be designated by an Arabic numeral followed by English alphabet letter. This page describes all RW types and subtypes.

The characteristics of a coddler that are used to determine the type of coddler are the backstamp and the screw threads. In many cases, we may refer to a backstamp style by the type of coddler upon which it was seen. However, two types of coddler, or two sub-types of coddler, are distinguished from one another by the combination of backstamp impression, color of the backstamp, method of application of the backstamp to the coddler, material and spacing of the screw threads, and other discernable differences in manufacturing process or visual characteristic, other than the pattern.




Type 1

Type 1 has a backstamp that consists of a shield with the words ROYAL CHINA WORKS over the top and WORCESTER underneath. The screw threads are finer-pitched.

This backstamp is actually the imprint of George Grainger and Company. The Grainger porcelain works was started in 1801 by Thomas Grainger. The business had different names over the years as Grainger partnered with others: Grainger and Wood, Grainger and Lee. George Grainger took over the business when his father died in 1839. The company was taken over by the Worcester Royal Porcelain Company, Ltd. and was operated by Royal Worcester until 1902. The mark shown above was used from 1889 to 1902, and it includes a date code, in the form of a letter, under ENGLAND, which indicates the year of production. A for 1891, B for 1892, C for 1893, and so on until L for 1902, the year in which the Grainger porcelain works were shut down.


Type 1 Example 1 Type 1 Example 2 Type 1 Example 3
Examples of Type 1 Backstamps



Type 2

Type 2 backstamps have C51 in a circle topped by a crown. RW was founded in 1751, hence the significance of C51 in their backstamp motifs. Around the inside of the circle is the stylized W that looks like wavy lines. Around the bottom of the circle written ROYAL WORCESTER ENGLAND.

Royal Worcester used a set of dot markings, starting in 1891, where the number of dots on either side of the crwon or among or below the words of the backstamp indicate the year of manufacture of the piece. The number of dots indicate a the year of manufacture of the piece. 1891 had no dots (the crown had a new design). 1892 had one dot to the left of the crown. 1893 had two dots, one on either side of the crown, and so on, up to 1915, where there are twenty-four dots, six on either side of the crown in two rows, and twelve beneath the words. In 1916 RW started adding other symbols and marks to the dot code. RW continues to use date coding on some pieces. On egg coddlers, it seems that they stopped using the date codes early.

Type 2A and Type 2B coddlers have a reference number, RdNo #561564 in a box below the circle. According to KM, this would be an English registry mark, and if so, the design was registered in 1909 with the British Patent Office. The screw threads are finer-pitched.


Type 2A

The backstamp is red. This mark has been seen on a coddler with a silver lid. The example shown has twenty dots, and so it's believed that the year of manufacture was 1911. The lid is hallmarked 1912. (BB).


Type 2
Example of Type 2A Backstamp

Type 2B

This backstamp is green, with the reference number RdNo #561564 in a rectangular box below the circle. These backstamps have the Royal Worcester "dot code" for dating the piece.


Type 2B - 1912 Type 2B - 1912
Examples of Type 2B Backstamps from 1912

Type 2C

This backstamp is black. It is like 2A and 2B, without the registration number. This example also has twenty-one dots and so it's believed to be manufactured in 1912.


Type 2C
Example of Type 2C BAckstamp

Type 2D

This backstamp is brown. It is like 2A and 2B, without the registration number. Instead, there is the word PATENT.




Type 3

Type 3 backstamps consist of the characters C51 in a circle topped by a crown. Around the top of the circle are the words ROYAL WORCESTER. Beneath the circle appears ENGLAND. There are banners on either side of the circle in which the words CROWN and WARE appear. The backstamp on Type 3 coddlers is dull green in color. The backstamp is underneath the glaze (i.e., it can't be scraped off with a fingernail, although we don't recommend doing this as a test, especially on an older coddler). The screw threads are finer-pitched. The pedestal is often smaller than on the other types of RW coddlers.

Some Type 3 backstamps have the Royal Worcester dot marking codes, beneath the circle and above ENGLAND.


Click here to view Type 3 backstamps



Type 4

Type 4 is actually a set of backstamps. Most of the Type 4 backstamps have C51 in a circle topped by a crown. Around the top of the circle is written ROYAL WORCESTER VITREOUS or just ROYAL WORCESTER. Under the circle is written MADE IN ENGLAND or just ENGLAND. In some cases there are additional words stamped or superimposed onto the basic design. the backstamp is dull green in color and is underneath the glaze. The screw threads are finer-pitched.

Type 4A

The backstamp consists of the words ROYAL WORCESTER VITREOUS above and ENGLAND beneath the circle.

Type 4B

The backstamp consists of the words ROYAL WORCESTER above and MADE IN ENGLAND beneath the circle.


Click here to view a Type 4B backstamp

Type 4C

The backstamp is the same as Type 4B, with the words FIREPROOF PORCELAIN superimposed on the bottom of the circle.


Click here to view Type 4C backstamps

Type 4D

The backstamp consists of the words ROYAL WORCESTER above and ENGLAND beneath the circle.


Type 4E

The backstamp is the same as Type 4B, with the word FIREPROOF superimposed on the bottom of the circle.




Type 5

The backstamps of Type 5 coddlers all have the stylized script W in the center of the circle. The subtypes are distinguished by the words and placement of them in the backstamp design. All Type 5 coddlers have the finer-pitched (tighter, or older) threads, except Type 5E.


Type 5A

Type 5A has the W in a circle, with ESTABLISHED above and 1751 below the W inside the circle. Outside the circle appears ROYAL WORCESTER above and HOTEL CHINA below around the outside of the circle. Across the top of the backstamp are the words MADE IN ENGLAND. This coddler was probably manufactured for the restaurant trade.


Click here to view a Type 5A backstamp

Type 5B

Type 5B has the W in a circle, with ROYAL WORCESTER above and FELDSPAR CHINA below around the outside of the circle. Across the top of the backstamp is the word BRODIES.


Click here to view a Type 5B backstamp

Type 5C

Type 5C has the W inside a circle, with the words ROYAL WORCESTER above the circle, PORCELAIN beneath the circle, and MADE IN ENGLAND in smaller print below that. The backstamp is black, and under the glaze. This backstamp is similar to several other types. Here is a table backstamp characteristics of those similar types.


Click here to view a Type 5C backstamp

Type 5D

Type 5D has the W inside a circle, with the words ROYAL WORCESTER above the circle, PORCELAIN beneath the circle, and MADE IN ENGLAND in smaller print below that. The backstamp is black, and under the glaze. The text in this backstamp is smaller in size than in Type 5C. This backstamp is similar to several other types. Here is a table backstamp characteristics of those similar types.


Click here to view a Type 5D backstamp

Type 5E

Type 5E has the stylized script W inside a circle. Outside the circle appears ROYAL WORCESTER above and FELDSPAR CHINA below around the outside of the circle. Type 5E has the less-dense screw threads. This type is like Type 5B without the word BRODIES and with the newer screw threads.


Click here to view a Type 5E backstamp



Type 6

Type 6 is a grouping of examples that we don't really know the chronology of yet. These all have the finer screw threads.


Type 6A

Type 6A has the same wording in the backstamp as Type 7 but in a larger type.


Click here to view a Type 6A backstamp

Type 6B

Type 6B has the words ROYAL WORCESTER FOR ST. MICHAEL. HEDGEROW. 3271/3410. The one known example of this backstamp is on a coddler that was made for St. Michael's ... the department store ... in their Hedgerow pattern.


Click here to view a Type 6B backstamp

Type 6C

Type 6C has the words FIREPROOF PORCELAIN WORCESTER ENGLAND.


Click here to view a Type 6C backstamp

Type 6D

Type 6D has a circle of words with MADE IN and ENGLAND in the centre of the circle. At the top of the circle is ROYAL WORCESTER and at the bottom is FIREPROOF.


Click here to view a Type 6D backstamp



Type 7

Type 7 coddlers have a backstamp that consists of the word ROYAL above the word WORCESTER above the word ENGLAND with no other lines or symbols. The backstamp is dull green and is underneath the glaze. The screw threads are finer-pitched.


Click here to view a Type 7 backstamp



Type 8

Type 8 coddlers have a backstamp that includes the stylized script W in a circle, with the words ROYAL WORCESTER above the circle, PORCELAIN beneath the circle, and MADE IN ENGLAND in smaller print below that. The backstamp is dull green and is underneath the glaze. The threads are the less dense (one or two threads on the lid, three or four on the rim of the top), newer style, as are all coddlers later than this type. This backstamp is similar to several other types. Here is a table of backstamp characteristics of those similar types.


Click here to view a Type 8 backstamp



Type 9

Type 9 coddlers have a backstamp with the stylized script W inside a circle. Outside the circle appears ROYAL WORCESTER above and PORCELAIN below around the outside of the circle. Beneath that is MADE IN ENGLAND in smaller type. The screw threads are of the newer, less-dense pitch. The backstamp of Type 9 is black and is imprinted over the glaze. This backstamp is similar to several other types. Here is a table backstamp characteristics of those similar types.


Click here to view a Type 9 backstamp



Type 10

Type 10 coddlers have a backstamp with the stylized script W, with the Registered Trademark symbol ® to the lower right, inside a circle. Outside the circle appears ROYAL WORCESTER above and PORCELAIN below around the outside of the circle. Beneath that is MADE IN ENGLAND in smaller type. The screw threads are of the newer, less-dense pitch. The backstamp of Type 10 is black and is imprinted over the glaze. The rim of the coddler is made of white vinyl. Type 10 differs from Type 11 only in that Type 11 has a metal rim.


Click here to view a Type 10 backstamp



Type 11

Type 11 coddlers have a backstamp with the stylized script W, with the Registered Trademark symbol ® to the lower right, inside a circle. Outside the circle appears ROYAL WORCESTER above and PORCELAIN below around the outside of the circle. Beneath that is MADE IN ENGLAND in smaller type. The screw threads are of the newer, less-dense pitch. The backstamp of Type 11 is black and is imprinted over the glaze. The rim of the coddler is made of metal. Type 11 differs from Type 9 only in that Type 11 includes the Registered Trademark symbol. Type 11 differs from Type 10 only in that Type 10 has a nylon rim instead of metal.


Click here to view a Type 11 backstamp



Type 12

Type 12 coddlers have a backstamp with the C51 in a circle topped by a crown. The inner scrollwork of the circle appears to be stylized script Ws at the top, bottom, left, and right. Around the outside of the circle, is written ROYAL WORCESTER ® FINE PORCELAIN. Beneath that, in slightly larger type, is written horizontally MADE IN ENGLAND and beneath that line is written OVEN TO TABLE WARE. The screw threads are of the newer, less-dense pitch. The backstamp of Type 12 is black and is imprinted over the glaze. The rim of the coddler is made of metal.


Click here to view a Type 12 backstamp



Identifying Similar Types

Due to similarities in design of the backstamps of Type 5C, Type 5D, Type 8, and Type 9, we are providing a table of metrics that you can use to identify these backstamps:


Backstamp Type Diameter of the circle in mm (measure from the outside edges of the circle) Height of the words ROYAL WORCESTER Distance between the bottom two loops of the W in the center of the circle in mm (measure from the outside edges of the loops at the widest part) Color of backstamp Thread type
Type 5C 14 mm 2 mm 4 mm black tighter
Type 5D 10 mm 1.5 mm 3 mm black tighter
Type 8 12 mm 1.5 mm 4 mm green looser
Type 9 9 mm 1 mm 3 mm black looser

Type 9 also has much cleaner backstamp images than the earlier three ... much less blurring.



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