$450 is probably a good deal. I've been watching these coins on ebay and even heavy environmental damage with original fields (no nic-a-date) are going for well over $200. If you think the coin looks good in hand, you paid just over half of RedBook
and almost exactly on bluebook prices.
By the way, the last Buffalo nickel
I bought had corrosion on the edge, so you might check there.
Congrats. 1913-S Type II is the last buffalo I need for my set. Been looking for a deal for about 3 months now.