Is it possible to identify the age of my piggy bank?
Yes, but only roughly. Identifiers are: factory or potters hallmarks, the type of glaze, the form (the mould has a traceable history), type of clay (for experts only), text or pictures on the piggy bank, the piggybank in your family (as in “your great-grandmother got it at the age of 6 from her mother”), where was it bought (looks stupid, but it is sometimes a perfect clue!), etc.