2 vintage '60s Gates fluted round knobs Sta-level console preamp broadcast

Description

plastic, fluted design in a 9-point style.
good used shape, though they could use a bath. some folks apply new insets, covers or decals, which you might want to do here, as whatever was inlaid into these two is long gone.
Each has two Allen set screws, brass collet, and fits typical 1/4" pots.
You might see these on the Biamote, Sta-level, some versions of the Yard console, and other transmitter/monitor/radio gear from Gates.
Each about 15/16" tall, about 1-7/8" diameter.  Thanks for looking!