That info on the floor tom mount usage is outdated and incorrect. That particular mount was used as late as early '65 on floor tom leg mounts and tom mounts. There was one badge that I saw in the pics that was a 5 digit starting with 6 I think. If so, that is a '64 badge and that mount would coincide. Floor tom legs would be the double knurled pattern in the early to mid 60's if correct.
Mike