With only 875,652 Proof half dollars struck, the 1958 is the lowest mintage issue from the second half of the series, which would eventually crescendo to a height of 3.21 million coins struck in 1962. Though common in most grades up through Proof-67 Ultra Cameo, it becomes very elusive at the Proof-68 level. At Proof-69 Ultra Cameo, you can count on a single hand the number of coins certified at both grading services.

The example to the left was sold by Stack's Bowers Galleries in the June 2020 Showcase Auction, where it realized $19,200.