Serial: 12387
Manufacturer:  Pedler/ART
Circa:  1930s?
Brand:  Gretsch
Model:  Commander

This one is a bit different than the usual Gretsch Commanders made by Harry Pedler/ART...
Instead of the ordinary/reverse-wrap Commanders based on the American Triumph, this one is trying hard to be a King Liberty, and it's not doing too bad a job.

It has a nested Esbach slide for tuning to A, threaded bottom slide leg for tuning adjuster [long gone], X-braced Esbach slide, and three-point piston guides [which sometimes seat incorrectly like my 1930 Liberty].

It differs with )( X-braces from leadpipe to bell [oddly enough, those are closer to the early Liberty main slide brace], a proprietary receiver which basically only accepts Large Morse flugelhorn mouthpieces, and the bell doesn't have a thick-bead, rounded rim. 
The rim is folded over and flat like some B&F peashooters I've seen, but with a sharper edge in a nod to Vocabell. 

The valves are shot, but Hetman #3 oil keeps it going.  It responds really nicely in the upper register - tons of zing!  I've heard that Pedler bells are the redeeming aspect of their horns, and this one definitely applies.  The receiver may have been made improperly; even though Gretsch sold Muck-OEM mouthpieces with narrow shanks, they don't even really fit in this receiver. 
I had a Schilke 14A4X shaved down to work here, and it plays very nicely.