jruschme's right - you'll need a first gen Power Mac to use the card. It says "DOS on Power Mac", rather than simply "DOS on Mac", which leads me to believe that the card is actually intended for the 601 PDS (which was only ever used on the 6100/7100/8100/9150), in addition to the fact that Apple's DOS cards were only ever PDS, never NuBus, since PDS provides greater bandwidth than NuBus, IIRC. I think the only company that ever made NuBus DOS cards was Orange Micro. Anyway, assuming its a 601 PDS card, it should just drop into any 7100, 8100 or WGS 9150, and I'd imagine that with a PDS right-angle adapter (or G3 upgrade), it should also run on the 6100, provided there's enough space inside the 6100's case.

Anyway, nice haul - I especially approve of the boxed C64 and Radius accelerator