I collect combo organs from the '60s and in my collection is the ELKA Deluxe Duo owned by the Strawberry Alarm Clock's Mark Weitz. It's 100% complete and "SAC" is Magic Marker written on the cases and bags. It was mint when I bought it, but was shipped to me via FedEx freight, who damaged the case. I'm in the restoration process. Took me 2 years to locate the correct red and black Tolex, but it will once again sing...
Here it is; damage not detectable in this photo...

Here's my lineup of '67 ELKAs, from the smallest to the Deluxe Duo:

I've also got VOXes, Farfisas, A Hammond, a WERSI. a Hohner, a couple of Teiscos, several Gibsons, a Howard, a Baldwin, and a Fender Contempo. 30 in all.
I was a keyboardist before I picked up the geetar...