No,thankyou Deejay for pointing it out:)...And as for learning,it appears your well and truly up on most if not all the Differences! lols.
Its good to get another accurate Model 4 STD in the forums especially with the correct serial...
One of a few little things I noted on this is the cowl assy. While its not impossible I would not expect to see this style sticker on a model 4 STD. Also the metal cap seems a good colour match to the tank. This combination I would expect to see on a 2a(cowl sticker),early Model 3 Rotomo or extremely early automatic,as the latter two ran mostly metal caps on the early release models. BUT since the cowl/tank assy colour seems to match the rear of the base Id say this is how it was sold:) Something small,but noteworthy...:)