As I reported on the Garage Sale thread, I found a 3/8-inch hinge handle today, completely unmarked, that immediately reminded me of the unmarked 1/4-inch hinge handles some/many of us attribute to SK. After I got it home and cleaned it up and compared it to one of the 1/4-inch hinge handles, I'm not so sure.
The basic design, construction and shape of the head is the same, although the 3/8-inch drive is slightly different. The knurling on the grip is exactly the same, and they take similar (though not identical) approaches to the **** end. It's not uncommon for a Mfgr's midget stuff to be slightly different than its junior stuff, and it makes perfect sense that if they weren't marking their 1/4-inch bars they probably weren't marking their 3/8-inchbars either. I'm just not as sure as I was standing there at the flea market.
Has anyone found these before? Does anyone have a 3/8-inch SK set from this era? Are the breaker bars marked?