Original U.S. WWII Era H-16/U Headphone Set Books & Films Next to the letters was

Next to the letters was stamped the metric shell size of the helmet

gas pressure adjuster

the French

ORIGINAL ITEM: In Original Transit Chest with EXTRA Barrel and Demilled Receiver

Original Item: Swedish issue Military Holster recently released from Swedish Army stores

Original U.S. WWII Era H-16/U Headphone Set Books & Films Next to the letters wasOriginal Item: H 16 U was Used by Tankers and Radio Operators, these are the flat ear piece sets for use with steel helmets that were introduced in 1944. Complete with sprung head band to keep in place and U. S. Makers markings and model numbers each headset comes with connecting cable and single prong plug. Each comes sealed in Original Packing! Manufacture dates vary, most are 1950s or 1960s. No date choice, sorry!