Barn Find - What Is It - 1940's? Mystery Device Teardown!

What is this thing? Looks possibly 1940's era? Let's take it apart and try to figure it out! To learn electronics in a very different and effective way, and gain access to Mr Carlson's personal designs and inventions, visit the Mr Carlson's Lab Patreon page here: https://www.patreon.com/MrCarlsonsLab #restoration #electronics #repair