Welcome to the CABE! You are in the right place, your bike looks like a beauty, and will clean up nicely with elbow grease and last longer than anything you buy at a chain store!
Take a little steel wool or a brush and clean the numbers circled in my pic off, I think I see MOD and some numbers there? I looked thru a few serial number charts and did not see anything like yours, Huffman, Cleveland Welding Company and a few others made bikes for Western Flyer sold at Western Auto stores, therefore it may have a few different serial number options, best of luck and keep us posted if you keep it and do a clean up! Someone with more knowledge than me will chime in soon and help you out, not much value as far as collectors go,l and it's a girls bike, but still a well built machine that deserves another go!
Aaron
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