WWII U.S. Navy NAF 68304 Beam Filter Audio Control Unit DTG and title page

and title page

Light staining and handling wear consistent with age

Dates “1914–1918” within oak leaf wreath

Manufacturer: Inland Division (GM)

Grapefruit Juice

WWII U.S. Navy NAF 68304 Beam Filter Audio Control Unit DTG and title pageWWII U. S. Navy NAF 68304 Beam Filter Audio Control Unit Original WWII era U. S. Navy Beam Filter control unit marked NAF 68304. Features a multi position selector for Range, Phone, Both, and Range Phone filtering with dual headphone style jacks and attached cable. Used as part of a naval or airborne radio radar communications system to filter received audio signals. A desirable accessory for WWII Navy electronics, radar, and communications