"The F-series guitars were phased out of production in the early 1960s, and then redesigned and brought back in the mid-1960s. Design differences included a shallower cutaway and the arrangement of the control knobs along the lower perimeter of the guitarяa departure from the standard (and very practical) attachment of the control knobs to the pickguard. Access to the body interior of this model was made through two circular holes hidden under the distinctively non-Rick pickguard. The redesigned F-series was only issued with deluxe appointments, featuring checkered body binding on the front and back of the 17 inch wide body. Body thickness, however, was reduced to 1 3/4 inches from 2 1/4 inches. Shown is a 1960 model 360F (left) paired with a 1967 model 360F (right), both in Fireglo. "