Help does anyone know what type pump this is?

[kytinker]

Bought this compressor pump and know I'm trying to id it so I can download a owner manual or just learn what I can,thanks in advance..

 

[bonneyman]

Older unit for sure. No idea of age or brand.

 

[BrandonV]

Scrap or repair, old EL SMITH portable 20 gallon compressor

Looking for any information on this old compressor. E L SMITH Quincy IL. No model number but there is some number stamped on the lower part of the cylinder 1392? Number on the output thing 1160. Was given to me by my neighbor who was gonna scrap it. He never had it running. Shaft appears to be...

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