Electrolux number 131873404.
This is a Dryer Selector Knob.
It is 1-3/8" in Diameter and 1/4" "D" stem with metal insert, stem extends 3/8" from knob base.
It is White in Color with a Black Pointer.
Replaces numbers 131168104, 890132, AH418920, AP2107777, EA418920, and PS418920.
Designed to fit specific Electrolux manufactured refrigerator models including Crosley, Frigidaire, Gibson, and Kelvinator, including some Kenmore's