This is the world’s first cordless remote control from 1955. The Flash-Matic is just that: a flashlight designed to be aimed at one of the 4 corners of the television set. This additional light would tell the TV to change the channel, or adjust the sound.
This remote is in excellent gently used condition, and when 2 “C” cells are inserted, it still works. Amazing rare find. Listing includes the advertisement.