Worksman, made in USA. They specialize in industrial bikes and trikes. The top pic of the one in yellow is the larger size, the lower pic in orange is called Industeral Newsboy and the standard size. Lugged and braze frames, normally 11ga spokes, these guys are tuff. Hard to tell but it looks like you might have a knock out front hub also. One of the favorite modern frames to rat, Klunk, modify. Tons of info on this site, do a quick search and you will get hours of reading. Enjoy.