The other point to make is that there are no keys or semi-keys from 41-47, but from 16-40, there are at least 5 (maybe more depending on conditions): 16S, 21 P, D, S and 38D. So it is easier and cheaper to put together a complete 41-47 set. Whitman folders can't hold all the coins in one folder, so I guess the naturatal separation of 16-40 and 41-47 occurred. Albums (Dansco, eg) can hold all the coins in a single album.





















