While awaiting David's thoughtful insights, I offer the following observations...
It might just be the lighting used for your images, but I don't see a coin with the expected proof characteristics.
As a comparison, have a look at these images of a certified 1893 proof Columbian half-dollar: http://stacksbowers.com/auctions/Au...LotID=323432
When I compare your coin to the StacksBowers coin, I see more design detail in Columbus' hair, the ship's sails and the globes. However, as you have your coin in hand, you'll be better able to compare the strike characteristics of the two coins.
Also, from the images, the coin appears to have wear on the obverse highpoints and either wear or strike softness on the reverse in the ship's sails. While wear doesn't eliminate the possibility of the coin being a proof strike, I believe the level of detail in the sails does.
I'm no expert on 1892-93 Columbian proofs, just offering an opinion.
It might just be the lighting used for your images, but I don't see a coin with the expected proof characteristics.
As a comparison, have a look at these images of a certified 1893 proof Columbian half-dollar: http://stacksbowers.com/auctions/Au...LotID=323432
When I compare your coin to the StacksBowers coin, I see more design detail in Columbus' hair, the ship's sails and the globes. However, as you have your coin in hand, you'll be better able to compare the strike characteristics of the two coins.
Also, from the images, the coin appears to have wear on the obverse highpoints and either wear or strike softness on the reverse in the ship's sails. While wear doesn't eliminate the possibility of the coin being a proof strike, I believe the level of detail in the sails does.
I'm no expert on 1892-93 Columbian proofs, just offering an opinion.
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