It's a 12-speed. Seller was not home when 1978 called and left a message on his Phone-Mate answering machine, saying it wanted its decades-irrelvant "10-speed" designation back. Boggles the mind how many people, probably half of whom weren't born when "10-speed" meant anything, still use the term. Also, from what deep recess of the seller's mind s/he got the notion of "road/track frame", it's anybody's guess.
Odd frame indeed. I've seen those horizontal dropouts, not fully cut out, on some ca. 1990 MTBs, but not on a road frame before. There MIGHT be some info on the steerer tube, but the fork may not be originally mated to the frame. Frame material is anybody's guess. As said, the components are a random mix. Like a "box o'crap" build. Even the rear skewer is from (or for) a bike with a wider rear triangle. Seller could at least have found a saddle that's not torn, and cleaned up the hoods.