a/c compressor ?

That's a common York 2-cylinder compressor used as original equipment on millions of Fords and AMCs and semi tractors and agricultural machines for cab cooling as well as on millions of port-of-entry A/C systems installed on American-market imported cars (Mercedes, Volvo, and many others) and scads of aftermarket A/C systems from the '60s through the '80s when the round-body Sanden type compressor gained favor.