365B Key

The exact year of introduction is not known but references to the Marconi 365 key first started appearing in 1935.
The brass base measures about 7.25" by 5.25".
The 365 Morse key was a very popular one and could be found in the radio rooms of British merchantman.  This key is sometimes referred to as the "Marconi Classic".  The acronyn M.I.M.C. Co Ltd" is an abreviation for "Marconi International Marine Communications Company Limited".It was later abreviated by removing "Communications" to leave "M.I.M. Co Ltd".
All photos in this table by Sandy Blaize  W5TVW.

Contributors and Credits:

1) Sandy Blaize  W5TVW   <ebjr37(at)charter.net>

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Nov 15/12