the more I have looked thru Norm Kilgariff's catalog archive, the less of any idea I have for that green frame: Can you, nikiross76, shoot pics of the headlugs from straight on at front and straight down on the TT and DT? We really need a clear shot of the seat cluster too. PDXaero: do you have similar shots of the lugs on your '56 Zephyr? The catalog shots of that year/model do not look at all like this greenie's lugs.
Very mysterious...might be a rare one and sure seems to be more typical of "earlier than 1961" lugwork.