Commemorative Silver
1893 25C Isabella Quarter PR64 NGC. Only 104 proofs were struck of the Isabella quarter. Unquestionable proofs, and high-grade ones especially are scarce. NGC has only certified 18 PR64 examples with 11 pieces finer. One of the features that distinguishes proof coins from prooflike strikes is the mirrored triangular field to the left of the staff on the reverse. The mirrored fields considerably brighten the medium density blue-gray patina that covers each side.
Ex: PNG New York Invitational (Heritage, 10/2014), lot 5141.