I can't identify that pump, it is nothing I am familiar with. By the piping and cylinder, it is a two stage pump. It is definitely not a Kellogg pump, but with some similarities.
As I type this, I looked up CH TF pump. I agree this is what it is.
http://www.mastertoolrepair.com/air-...p-p-26500.html
I would run this pump with no reservation. At the right RPM with a 5hp motor, it will be a REAL +/- 17 CFM compressor. Watch eBay for a 5hp Baldor 1725 rpm motor. If you are patient, you can get them brand new for under $300 shipped.