The Kadette "H" was made in 1931 by IRC (International Radio Corp.) in Ann Arbor, Michigan and was the first mass-produced plastic radio and AC/DC set. This example is black bakelite with silver escutcheons. It is a small radio measuring 8"W x 6.5"H x 4"D. It used an unusual 4 tube line-up of A-1, 39, 38, 37 and the speaker frame was built into the chassis.