Marks give a lot of information, but sometimes give a headache not knowing the signifiance. I did research on it....

Why Do We Put Money into Piggy Banks? Not my text.......

No hallmark means guessing where a piggy bank is from. That's the provenance puzzle....

A hallmark on a piggy bank is always a joy for me. Knowing who made it and where it's from. So I can cross my t's and dot my i's.....