I recently acquired a 5x14 Slingerland COB that I'm in the process of cleaning and restoring; it was very dirty but everything is in really great shape. I'm very excited about setting this thing up and using it, and will post pics when I'm done. It's an 8-lug model with a Zoomy that has the shell protector tab, and the extended-style butt plate. The badge style and serial number place this in the mid-70s somewhere, maybe 1975-1977.
I honestly think that it's never been played or owned. It has a faded store price tag on it ($195), the original Slingerland drum head with no stick marks, and it even has the original Slingerland warranty card rolled up and slid between a tension rod and the shell! There are no snares, and the snare head was a Remo Ambassador that showed no signs of wear.
My question is: are there any distinguishing features differentiating the Gene Krupa models from the standard Sound King models? Or, were the monikers based strictly on the years of manufacture?