Vintage Chinese K4 (D-117) Military Morse Code Straight Key With 1/4" Phono Cord/Plug. USA Seller.
From the estate of an avid Morse Code key collector in excellent physical and working condition (see video). Heavy steel base, never uncoiled 1/4" mono phono cord/plug.
Your K4 (D-117) Morse Code key will be well packed and shipped promptly.