|J-37 - Morse code key from PRC-47 and other RT units, with J-45 leg iron and PL-55 (or similar) plug. (M2H) Used.
|J37AN/GSC-T1 - J-37 Morse straight key on a base with original cord. Base is indented on the sides to hold the cord when not in use. Originally part of the AN/GSC-T1 code training set. Insulation on cord near key is cracked, rest of cord is intact. Used,