Original U.S. Vietnam War Era Operation Igloo White Seismic Sensor ADSID III Napoleonic The markings on the receiver

The markings on the receiver are still mostly legible:

parachute and belt

the same name that is marked on the back of the helmet

with a nice pin catch on top

Original U.S. Vietnam War Era Operation Igloo White Seismic Sensor ADSID III Napoleonic The markings on the receiverOriginal Item: Only One Available. Using the cover of darkness, dense jungle and bad weather, North Vietnamese trucks carried critical supplies down the Ho Chi Minh Trail nearly undetected. Since large numbers of American ground troops were not permitted into neutral Laos to stop the trucks, the U. S. Air Force deployed a system of electronic seismic sensor equipment to thwart the enemy's cover and alert U. S. commanders. This highly classified