there are so sooo many designs out there - usually the maker would use/create a particular button for just
one garment- that garment would have 8... 10... 12 of that button design made but it would be the only one with that button design - since most clothes were one of a kind and not mass produced - the Dutch were known for fancy designs on their buttons... in and around the state of NY
long ago a partner and I found a combined 8 large - bout size of yours - around a cellar hole - but its usually hard
to find 2 with the same design from that time period - mine ended up in a button museum