cobb is great.....but , the 52 topps is an "iconic" card......top 3 in the hobby...
it far exceeds even collectors.....non collectors even "heard" of it.....more cards exist of the mantle, but demand is/will be greater..larger market and demand..not many non collectors even "know" what a green cobb looks like...
t206 wagner, 52 mantle 33 goudey ruths are "most recognizable" with collectors and non collectors...
a 52 mantle is a 52 mantle! and its not even his true rookie, but it doen't matter...
I am a 206 nut, but 206 green cobb pales in comparison to a '52 mantle