Genuine Electrolux part number 131873304.
This is a Dryer Control Timer Knob.
It is 2-1/4" in Diameter and 1/4" "D" stem with metal insert x 3/4" long (as seen in picture 2).
It is White in Color with Gray Pointer.
Replaces numbers 131167804, 890128, AH418916, AP2107773, EA418916, and PS418916.
Designed to fit specific Electrolux manufactured dryer models including Crosley, Frigidaire, Gibson, and Kelvinator.