greetings, i have an old Rogers bass drum pedal that I would like to identify; 90% of the vintage Rogers pedals that I see out there have the spring assembly coming up off the pedal but mine follows the frame column (like a more modern Rogers pedal) but has the old swivomatic plate. Can anyone direct me to some catalog scans or does anyone know what this was called? Also, there is no strap. I suspect that the original strap was leather or could this have been an early nylon strap? Are there many of these around?
Thank you.