This lily-pad shaped knob screams the 1950s and 60s. This knob likely was used on bathroom and hallway cabinets. Now, we sell these funky knobs for all kinds of purposes. It came in a variety of finishes; this one is a shiny brass finish.
The 2 1/4 inch by 1 1/2-inch knob is concave, in that the middle of the knob dips or is lower than the knob’s corners. The knob projects about 3/4 inch from the surface. The knob appears to have not be used or is like almost new. An original screw will be included.