Quaker Oats Radio Receiving Set

The Quaker Oats Company offered this crystal radio as a premium from 1921 to 1923 at the cost of $1.00 and two Quaker Oats trademarks cut from Quaker Oats packages, or a complete setup including an Aerial Kit and a pair of Trimm 'Dependable' headphones could be had for $5.00 and two Quaker Oats trademarks. 

The radio was manufactured by Marquette Radio Corporation for Quaker Oats using a standard Quaker Oats container. At that time, identical containers with this identical label were used to package Quaker Oats. They wound a coil of wire about 80 times around the container and then covered it with the thin paper label.  Tuning is by means of a slider contacting the coil in an area along the side of the radio not covered by the label.

See similar model Mother's Crushed Oats Crystal Set.