1950-90s Farberware Perfect Heat Controls for Electric Woks Skillets Etc.

An example of four Farberware heat probe temp controls for their electric appliances... "Perfect Heat"... from left to right... an early 1955 Leviton - no model number... an early Leviton model 100 - note the 1950s TV style dial in gold white black... a Leviton model 100 with gold sticker/lable - very common version... the later model 101.

All four are listed as New York, USA... in later years the 101 model was often marked China or Mexico.