Postwar American Television
DuMont RA-103 Chatham
(click on picture for high resolution image)
(1947 - 12 inch)
This set is often called the "Doghouse" because of its shape. DuMont made high quality receivers, probably the best of that era. Here is a 1946 DuMont booklet. Here is another RA-103 model, the Rumson.