So I was on a sales call at a Course here in Southern NJ today. They dredged the lake for the first time that super could remember. Found buckets of these and was given a couple. US Royal and Dunlop from what I can discern they are from 1920/1930 era. Will go right in display case. Had a few with 1928 Ryder Cup logo. Obviously he was keeping them and quite a few other seemingly rare ones.