Un stamped distributor
 

Nice original unstamped distributor $125.00 shipped in the us

Looks legit to me. Have you measured the diameter yet where the number would normally be stamped? Not questioning the authenticity at all, it's just that I'm naturally nosy, and also, that information may help you sell it. Also, what numbers are on the points cam and the vacuum advance. All that info may also help the sale.

If I'm not mistaken, the "stamp" is on the metal band. I have one of those from a 327 in my garage somewhere.

yes the band IDs it