You know, I never looked that closely before, but there are two different panel legends on the '107.
My FB (S/N 0806, manufactured & purchased recently) has the waveforms on the panel, so I’d guess all current units have the waveform graphic. Perhaps other FB owners can post their serial numbers to confirm?
FWIW, the picture on the Moog site shows the ‘digit’ (older?) version:
I remember Moog users, after viewing the prototype at NAMM, requested the original waveform knob be changed from the numeric design to a replica of the Voyager’s.
Perhaps there are only a few of the former in existence?