Note this should not be confused with the pattern, which is identified by a letter code (see the patterns page).

The range of known shapes extends up to about 1300, with about the first 300+ being handthrown "early" shapes.  Although it is reasonable to assume that pattern numbers were allocated in sequence, it does not necessarily follow that a piece marked as shape 50, for example, was made before a piece marked shape 100 - some shapes would no doubt have been produced for a number of years.

The table below lists all the shape numbers in the range 1 to 1300, although by no means all the numbers have been seen.  Initially only shapes up to 50 are shown - more will be added.