Original U.S. Vietnam War Hand Held AN/PRT-4A Radio Transmitter Military Maps and Pre-WWII “Crested Sun” insignia

and Pre-WWII “Crested Sun” insignia

However this is almost certainly a decal applied as part of the repaint

The 3rd Cavalry Division's designated mobilization station was Fort Des Moines

Upper Observation Window is clear and undamaged

Original U.S. Vietnam War Hand Held AN/PRT-4A Radio Transmitter Military Maps and Pre-WWII “Crested Sun” insigniaOriginal Items: Only One Available. Introduced in 1965, the PRT 4A is a 2 channel crystal controlled handheld FM transmitter, for use with helmet receivers as part of a set. The A version transmits a 150 Hz tone that opens the squelch on receivers so equipped, such as the VRC 12 series, the PRR 9 (XE 9),and PRC 25 77. Power output is 450mW on Channel 1 and 50 250mW on Channel 2. The radio has an empty skeleton detachable bottom BA 399 U battery