I have searched on the bank and have seen several, but I cant find one with the base like you have shown. The pat number doesnt come up anywhere either. BTW, is that copper or cast iron? The ones I have see are late 1800s to early 1900s and I have seen various prices on them ranging from 50$ to 1000$, also Im wondering if yours is actually missing the paint. I found it easier to research it by the keywords of "jolly negro mechanical bank" Is it possible to get a picture of the bottom of the bank please?