Grillcloth was initially the same as used in the previous tweed era, maroon with gold stripe.
Beginning in mid to late 1961, Fender introduced another color combination: a smoother but still light brown tolex with a dark maroon or "oxblood" grillcloth.
The first amplifiers made in-house by the Fender Electric Instrument Company have been dubbed the Woodie series, built in 1946 through 1948.
Two different colors of grillcloth were featured on the blondes, oxblood and wheat.
There are several experimental Fender Tweed amps in blonde.
There were only six amplifiers covered in tolex originally, the Professional Series: Bandmaster, Concert, Pro, Super, Twin (production halted Feb-May 1960, resumed as the blonde Twin) and Vibrasonic.
These were considered a step above the student models (Champ, Harvard, Princeton) which remained tweed-covered in 1960.
The shift from tweed to Tolex occurred in limited production in 1960.