My hubby thinks it is a re-branded Singer, perhaps a model # 127 or 128 (he's been doing lots of research lately). What a great find in any case. We recently bought a 1940 Singer - to replace my 1980 Pfaff. How funny is that?
You found yourself a really nice machine. It looks like a work horse. I've never heard of the brand, but I used to have a singer that was some what like it. Came in a wooden case and it was very heavy but it sewed beautiful. Found yourself a wonderful machine and the case is beautiful. God Bless