1983
Third Quarter
75 built that quarter.

SMC indeed is San Marcos period

Most likely repaint, at the time the two color downtube transfers, the alternating color downtube text transfers were long gone. Looks like a good respray though, that would account for the rack mounts. If original I would expect the drops to have eyelets as well. Masi did not market the bike as anything other than a racing machine.

One thing that is of interest is that the stay caps are not the cast type in appearance, Might be the last of this fabricated type rather than the later Investment cast plugs, I have not seen enough '83's and '84's, the lugs and crown are the Henry James sourced units. Note the lug shape and that the "ring" adjacent to the headset parts is missing, and the semi sloping crown.

Custom Masi's could be had, but were not encoruaged. Mostly for "sponsored" riders and track frames.