William Moorcroft, Florian Ware vase, c. 1900, 'Poppy and Leaf' pattern, decorated with sprays of blue flowers against a light blue ground between panels of fleur-de-lys, incised 'W. M. des', with printed Florian Ware mark and registered design number '326468', height 5.51 in. Provenance: The Estate of Mary Smart
- Incised - A record of a name, date or inscription, or a decoration scratched into a surface, usually of a glass or ceramic item with a blunt instrument to make a coarse indentation. Compare with engraving where the surface is cut with a sharp instrument such as a metal needle or rotating tool to achieve a fine indentation.
- Registered Design - During the period 1842-1883 the Patent Office issued a diamond mark along with the registration number when a design was registered.
Besides indicating that the design had been registered, a diamond mark offered the buyer the reassurance of knowing an item was of British design. It assured the person registering the design a degree of protection from copying.
The mark was created to identify the type of material used (known as the class), how many items were included, (sometimes known as bundles or packages), and the date of registration.
On the diamond mark the year of registration is shown along with the month code. However, there are two ranges of year codes; 1842-1867 and 1868-1883. By looking at the design of the diamond mark you should be able to determine the correct year from the design of the diamond mark and the placing of the day number.
Source and further information: http://www.nationalarchives.gov.uk/records/research-guides/reg-design-diamond.htm
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