GTs58
I'm the Wiz, and nobody beats me!
I just came across an eBay listing for this guard and these don't show up to often. Probably the the third one I've seen in over a decade and I believe this is a transition piece between the 1955 and 1956 model hockey stick guards. The rear mount bracket is mounted further to the back but the guard still has the rivet hole for the 55 and earlier pieces. It also has the cable clip on the top but it looks like the clip tab is broken off or removed at the factory. Interesting guard using up old stock after the front mounting tabs on the frame were moved forward on the BB.
