The serial number is E37122 A0 so I think it might be a ‘37? The frame and forks were originally black so the original tank would have been red. I don’t know how to date the tank but this one didn’t come with this frame. The head badge is really cool.
This bike has had some patina paint done on it before my ownership. I think the red oxide primer looks ok with the dabs of green and the original black showing thru here and there. I may see if I can find some original details under the primer. The chain guard that’s on it I don’t care for. I’m going to keep the frame, fork and tank. Everything else is up for reconsideration.