Key - Flameproof straight key (Key for No.48
Set) based on
J-5-A flameproof key with "Send-Receive"
toggle switch added. Made by Western Electric to
complement the Wireless Set No.48 radios which were
manufactured in the United States for Lend-Lease
supplies to Western Europe and USSR from 1942.
for No.48 Set could also be supplied in
Strap-On-The-Leg version with two tapes attached.