CRAC Manual Morse Keyer Telegraph Key CW Key with Magnetic Port Suitable for Ham Radio Users 

https://www.thanksbuyer.com/crac-manual-morse-keyer-telegraph-key-cw-key-with-magnetic-port-suitable-for-ham-radio-users-76193 

Interesting magnetic cable "snaps" to the connection.

More:  https://www.thanksbuyer.com/index.php?route=product/search&search=Morse%20key

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DR