Comstock, a contoured variant of Standard Gothic, was used in yellow caps for the debut album by The Kingston Trio, released by Capitol Records.
According to Wikipedia,
The Kingston Trio was one of the most prominent groups of the era’s folk-pop boom, which they kick-started in 1958 with the release of the Trio's eponymous first album and its hit recording of “Tom Dooley”, which became a number one hit and sold over three million copies as a single. The Trio released nineteen albums that made Billboard’s Top 100, fourteen of which ranked in the top 10, and five of which hit the number 1 spot.