Got a pair of these off a 16 inch custom floor tom at a garage sale last week. The hardware on the tom was 60's Ludwig Classic and hoops that appear to my eyes to be tall boy Rogers. It measures 1 and 5/16ths and they are C.O.S.
Any Rogers experts verify that this is a Tall boy hoop?
[IMG]http://i75.photobucket.com/albums/i292/skapunk_edge/photo-96_zps1b51f773.jpg[/IMG]