Operadio 2 Portable Broadcast Receiver, 1923-1927

The Operadio 2 was among the first generation of commercial portable radios. While a "mobile" device weighing 30 pounds may be laughable to us now, the Operadio was a groundbreaking device. A self-contained system, its carrying case conceals batteries, a speaker horn--and a loop antenna in the lid that attaches to the top, where it swivels for better reception.