Probably Mustang 2 if I had to guess. ??? They only came in that flavor when they were equipped with a V8. 3.00 with TL.
6MA is the date code = 1st week of the 12th month of the 6th year (1976 I would guess) 932 is the unit ID number for assembly plant purposes - may indicate what style car it was headed for but i don't have those numbers
L means "LIMITED HP capacity". you should junk it. well, just send it to me and ill dispose of it for you