I came across with this 2013 reverse proof buffalo 1oz gold coin graded PF70.This is the 100th anniversary edition buffalo.Black label in a black retro slab.And its an early release.Mintage just above 47800 so it is not a low mintage coin but it seems it is very rare being reverse proof.This is the 1st reverse proof and could be the only one in the series.I checked value but prices are all over.It seems it gets more on an auction than on ebay or such... What do you guys think of this coin? (I might put up pics later of actual coin)