Sizes are 2.25" to 2.5". First button was used by an "Official" at the 1953 Oakmont Country Club for the 53rd Championship. Covered metal back once suspended a ribbon now gone but the button itself is essentially Mint. A pinpoint dot at lower right was dirt now removed. Next from 1965 names "Bellerive Country Club." This served as an admission ticket ($25) to the "Grounds And Clubhouse." This event was in 1965. Last was issued to "Grounds Staff" for the "U.S. Open 1968/Oak Hill Country Club Rochester, N.Y." Dark stain on left side with metal back having surface rust in the same area. The second item, like the first in the group, displays Mint. Paul Muchinsky Collection.