were they not, bringing the coinage up to standard after Henry VIII? seems best logic as you can record how much silver you are using and how much currency is out there. doesnt matter how many mints, each one could record, make financial sence for the country. seems like thebest logical explanation for this, look at key things, William III there are lots, due to recoinage, 1860 and 61, 1971, all replacing older coins, so more minted.