Old compressor hep

My old compressor was having issues. When it gets to about 80psi, the pump won’t turn over. I figured the reed valves were bad. So I took the pump head apart and found this. Pretty corroded in there. Rotating assembly was nice and smooth still. Can anyone identify this brand? I can’t find any reed valves that look like these. Pretty sure this thing is like 50yrs old. It may just be time for a new pump. It’s a solid 60gal tank with a 5hp electric motor so I’d hate to toss the whole thing.

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