British Royal Air Force (RAF) Aircraft Light Ssignalling Key .
An East German key, a Junkers-copy, but flameproof.
Lorenz-taste LT-2 or Lehr-Taste 2 (practice key )
De Bath-tub, flameproof Air-Ministry key
Admiralty Pattern : 7681
The CLIPSAL of the Gerard company
German T1 key
JUNKER M.T. /59
English "Larkspur"-key small
English W.Rem. Cont. Unit L-No.2
English key for training, also used in the Netherlands.
Russian miniature key
S-R Cotel Straight Key
9740 WW-II Tsjech military key
The American J-45
US military CTE26003A key
Key and Plug Assembly No.9 all versions
Keys of the WS-19 and WS-22
Operators-key No. 1 MK II of wel de Y.A. 8414
Swiss key made by Zellweger AG
Home brew key. unknown origin.
If you want to see some more keys, the site of Tom Perera - W1TP!!!!!!