I've been wanting a Centigrade 37 (C37) for some time now and finally got my chance!
With an awesome sci-fi theme, backbox animation and fantastic art package (along with good game play), Gottlieb released 1600 of these beginning in Aug, 1977, right at a time that would later be known as the peak of Gottlieb's success.
The seller, living in Manitoba, Canada, said he owned it since the late '70s. Backbox is a bit worn but cabinet and playfield look quite good for 88,000 plays IMO. Doesn't look like it has ever been cleaned. Currently it generally works but there are some issues with scoring that need to be addressed as well as other common issues like sticky score wheels, flipper needed rebuilding etc. We'll get to these in due time!
To that end, thanks in advance for any comments, suggestions or help you can provide as I have much to learn!