This one came up on my radar as well, just my size, and I love 531 Frenchies. Frame details look right, but as mentioned, the fork is likely a replacement. The fork has a Vagner crown and appears to have fairly clean construction, so it might be a quality replacement. Not bad, but not worth the price he's asking. Also, the headset seems to be missing a spacer, maybe the stack height is too low due to the replacement fork? Frame paint looks oxidized, so it might be original. Interesting... if it was closer, I'd take a look.