Probably (pot code date corresponds to serial number) a 1966 ETG150 Archtop Tenor in very good condition. Stamped "2" as a factory second but no obvious apparent flaws. Some typical lacquer checking and a few dings. Has a Lindy Fralin P-90 stack-coil humbucker installed, a replaced pickguard, and replaced Kluson tuners, with all originals in the case. It also has a leather strap lock screwed into the heel of the neck. The bridge is the correct style but is a 6 string width. The saddle doesn't show signs of ever being a 6 string so it's possibly original, but Gibson did use short tenor bridges that look like this one, so we're not 100% unsure of originality on the bridge. Otherwise all looks correct. Has a modern TKL hardshell case.