Compressor Identification?

Hi All,

I'm new to this very interesting forum. I have this old compressor lying around (see attached pictures) and I wonder if everybody could help me with some specifications.
The only thing I know is what the sign says: 1/4hp, R12, 230v/2amp, 50/60hz and that it delivers approximatly 1.5 m3/min unloaded. Suction is 10mm (3/8") and output is 8mm (5/16"). Made in USA.
So if anybody knows more please post here. Thank you.

Unberg

it's an v.old techumseh model -but I expect you knew that already

cheers

richard