Dear Galen,
If it is an Eyetalian Masi why does it have the American-made Henry James lugs ?
Looks like a mid-to late eighties American job to me - maybe check with Ted Kirkbride down in Southern Calif. somewhere. Is he still around the bike biz or is he retired/unavailable ?
Of course, we should not neglect to ponder the next obvious question of WHICH fine old Italian gentleman might have made this frame - was it Guiseppe STARK, Davide MOULTON, or maybe the late Davide TESCH ? Interesting how ALL of them dropped the vowels at the end of their names after emigrating from the old country, eh.
Enjoy your fine bike - it is gorgeous !
(Maybe I'll see you out ridin' round one of these days.)
Mike Fabian
Chilly Foggy San Francisco