and it is def from that era.
I just read in my fender book "the golden age" that 68-69 fender valve amps had a sort of aluminium binding, which your has
concerning the case: what does it make you think it is a late sixties early seventies case?
I think fender made mainly the blac tolex cases with the fender logo for strats, teles and other higer end guitars
the cheaper models (musicmaster, myustang) came in agrey-ish case made by Victorria luggage
It is anyway a nice case
more info here:
http://home.provide.net/~cfh/fender.html#cases