I think you have an early 50s DX frame as you have forward facing drops. It looks like the small frame. DX was Schwinns economy bike. It will still make a good klunker. The forward facing drops are a real problem if you are going to be using a coaster brake. The rear axle will creep forward and twist, making the tire rub on the frame. This happens anyway but on a klunker you really use the coaster so it will move in those drops. There is not a good working solution for using chain tugs on forward facing drops. I usually convert forward facing drops to track style if I’m going single speed coaster klunker.
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View attachment 744775View attachment 744776Without truss rods your steering on single track will be poor. Better with truss rods, but still poor. I would go with a BMX type fork or mountain bike fork. A mountain bike fork will allow front brakes, a must if you’re going coaster single speed. A broken chain and then no brakes. Ditch the 70 year old skip tooth chain setup for a modern 1/2 inch pitch. Makes sure you use a really good headset or it will continually loosen on rough trails. I use alloy headsets with sealed bearings. Here is my 1940s coaster brake DX clunker.
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