no, i write before 1936 they used a center stitching and in 1936 they changed to shirt center stichting. And i don�t say any bear unit markings. I own serval befor 1936 made...and serval without unit marking. but there are brown laque in the majority or scarely natural finisched.
2-3 makers produce shirt line stichtching ones with no brown colour in natural finisch. This is the one you called B. But they don�t laque black. Some i found were polished brown. The most bear the LBA stamp. L.Krumm, Hepting and G�tze are the well known makers of the natural finish LW frogs. The most ware made 1938-1941. the reason is unknow.
