I've been working on a men's Mossburg for my son's father-in-law, I don't know too much on it either. His is a 3 speed Shimano, I understand it was built in New York about 1973 by the Mossburg Firearms Co. They were having hard times and turned to building bicycles to keep the company going for a couple of years. I'm going to take liberties with this clean up and flip the bars to give it a more sportier look, the fork is a chome replacement, flat blade with holes down the sides. I really like the style of the fork with the name of the bike, it goes well together.