Royal worcester dating code
Royal worcester dating code - woods hole carbon dating
This coddler was probably manufactured for the restaurant trade. Here is a table backstamp characteristics of those similar types. 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. Here is a table of backstamp characteristics of those similar types.
Around the top of the circle is written ROYAL WORCESTER VITREOUS or just ROYAL WORCESTER.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.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 pedestal is often smaller than on the other types of RW 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. 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. Note: The designation of "type" is entirely ours ...All Type 5 coddlers have the finer-pitched (tighter, or older) threads, except Type 5E.Type 5A has the W in a circle, with ESTABLISHED above and 1751 below the W inside the circle. 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.Type 6 is a grouping of examples that we don't really know the chronology of yet. Type 6A has the same wording in the backstamp as Type 7 but in a larger type. Outside the circle appears ROYAL WORCESTER above and PORCELAIN below around the outside of the circle. The screw threads are of the newer, less-dense pitch.