I'm going to have the opportunity to display some of my vintage snare drums at a public venue in the near future and want to make sure that I'm providing accurate and complete descriptions of each. I've got a Ludwig COB (shell and rims) 5x14 ten-lug snare with Imperial lugs, a pre-serial Keystone badge and baseball bat style muffler (red felt pad). From what I've researched, this drum should be catalogued as a Super Ludwig snare. Is this correct? If so, could one of you experts "enlighten me" as to the difference between the Super Ludwig model and the Ludwig Supraphonic model? Is it solely the date of manufacture or are there actually some physical differences between the two models?
As usual, THANKS in advance for your time and your help!