I have been collecting 1940
US coins for a bit now and just
recently bought a 1939 Nickel with a 1940 Reverse.
My question is ... how does one differentiate a 1939 Reverse
from a 1940 Reverse ? What differences are there ? I don't have
a 1939 Nickel to compare it to. I do have the "Mega Red" Coin
Book, but staring at each coins reverse nothing leaps out at me.
Thanks for the education,
Richard S.