1944 Principles of Radar – MIT Radar School – WWII Technology Press – Formerly Confidential Hats Manufactured for Navy Department –

Manufactured for Navy Department – Bureau of Ships

multiple tuning/voltage test points

Rendered completely safe and non-functional

or reenactors looking for an authentic piece of Wehrmacht gear

1944 Principles of Radar – MIT Radar School – WWII Technology Press – Formerly Confidential Hats Manufactured for Navy Department –Original 1944 hardcover edition of Principles of Radar, prepared by the Staff of the M. I. T. Radar School and published by The Technology Press, Massachusetts Institute of Technology. This landmark World War II reference was originally issued as CONFIDENTIAL, with an official wartime stamp indicating the classification was later changed to RESTRICTED, followed by a handwritten notation stating it was subsequently declassified. These markings make the