The Dahlberg model 4130-D11 is a coin-operated radio made for hotels and hospitals.
It was designed to be mounted on the bed headboard and featured a pillow speaker.
1 to 5 dimes gave you 1 to 5 hours of listening before it would shut off.
Click on the radio to hear a clip from the radio drama, "Skyking" (double-click to pause/stop)
This example is a mint green, but pink and white cabinets were also available.
A version with a clock in place of the coin mechanism was also made.
Some came with a cut-off switch in the pillow speaker cradle on the left hand side.
The colorful Dahlberg enameled nameplate was not included on all its versions.
Notice the upside-down dial for better viewing from bed.
A light in the top gives off a nice glow when it's playing.
It was made in 1955 in Minneapolis, Minnesota.
PC users: click here for an Flash interactive display.
(schematics) ...if you have a better copy, please let me know.