Just curious if anyone knows when the Rules first allowed balls on the green to be touched, marked and lifted? I thought I heard that the ability to mark, lift and clean was fairly recent (maybe 1950's) in golf's history.
Touched/Lifted - Allowed if the player's ball touched another ball (1744), then within 6 inches (1775)
Marked/Cleaned - Marking was 'should be' in 1956, 'shall be' in 1976. Cleaning a ball on the putting green was 1960. Cleaning a ball that ended up in a water hazard, casual water, GUR, or identification was allowed in 1938.