You know, it's not all about Green Cans with elephant ears and bussbars. This motor was in generally excellent shape, and is a C can, but with a simpler end bell (earlier?) and straight-ahead hardware. Of course, the end bell material itself is the same tough-as-nails stuff as in the later designs, and the hardware is basically the same, but with less doo-dads. The can doesn't have the clearance cuts and the magnets are a bit softer than the best ones. The can really only needed to be stripped and straightened a bit, but the bushing had been ground to clear whatever bracket/chassis it was installed in.
I soldered-in a new bushing and did a solid coat of an eye-catching red from VHT that was air-dried and then oven-cured. The end bell got stripped, the hardware cleaned and aligned...and the screws replaced, since the Mura ones use a different sized wrench and are too short for the spring posts anyway. The bushing got refaced and trued and then everything was reassembled. The magnets got a fresh zap in the old Rgeo Magblaster and read as really closely matched and up to snuff! The arm that was in there was a tagged "20" and I don't know if that was the original arm, but I kicked things up a solid notch and went with a #26 wind that measures .082 ohms.
I'm guessing that the motor was originally a little more modestly priced than the hot-shot top-shelf Mura stuff. Now, it still looks mostly "unassuming", but will sing like Pavarotti when the trigger gets pulled! Another type in the long list of Muras that were sold will live to run again...and hard!