While the 18th- and 19th-century examples of Wedgwood Jasperware are sought after, with rare exceptions, the 20th-century examples are not, which makes identifying when a piece was made of utmost importance.
The more modern versions can be quickly identified if you know what to look for.
Jasper dip and solid jasper are two different kinds of Wedgwood jasperware.
Both have white classical designs on a coloured background, and look similar to non-experts.
Jasperware was originally developed by Josiah Wedgwood during the mid-1700s.
Jasperware was originally developed by Josiah Wedgwood during the mid-1700s and took advantage of new decorating trends, notably, in this case, copies of pieces found by early archeologists digging Greek and Roman ruins.
The colour was incorporated in the basic mix for solid jasper.
This formula was expensive to manufacture and Wedgwood soon developed an alternative – the jasper dip, or surface jasper.
This example has a few clues to its vintage: first, it’s stamped “Made In England,” “Wedgwood” and “57.” The marking “Made In England” automatically labels this as most likely a 20th-century example.
This mark belongs to the usefulwares factory before 1780.