Royal worcester dating system
[It has been pointed out the this does not apply in all instances - as small items such as thimbles do not have the words MADE IN ENGLAND on them. In general Jasper pieces produced before 1860 were produced before 1826 except for black, blue, green and dipped pieces and solid white jasper which were resumed in 1844.
The number listed for each year in the table is the first number issued that year. If your number is higher, but less than the number for the next year, then your item had it's design registered during that year.Their production is marked with one or the other of the several versions of the Wedgwood and Bentley mark.Useful wares were produced with his cousin, Thomas Wedgwood and bear the WEDGWOOD ma In 1860 the Wedgwood factory started marking its wares with the date of manufacture impressed in each piece as part of a three letter code.In about 1769 he adopted the familiar mark with the name impressed from a single slug.the WEDGWOOD mark is found on useful wares between 17 and on all wares produced thereafter until the sans serif version of the mark was introduced in 1929It was in 1769 that he formed two partnerships, Wedgwood and Bentley produced decorative ware with his good friend, Thomas Bentley.
In 1775, George III granted Derby Porcelain the right to incorporate the crown into the Derby backstamp. William Duesbury fully acquired the famous Chelsea Works factory in 1770 and the Chelsea anchor mark and Derby ‘D’ were merged to form the Chelsea-Derby mark.