Hi I'm not sure of the date,it has a O stamped next to the AW Threaded driver with 18 t cog (changed to splined driver after 1951) 40 hole 2 shifters :3or4 speed + 3 speed 1metal cable stop 1metal pulley Dirty + came off a bike with the original tires,so it hasn't had a lot of use $100 shipped to lower 48 Thank You
Charlie Petry Cochranville PA
charliepedal@aol.com