SOE Fog Signal igniter.
Igniters, Fuze, Fog Signal, Mk.IA for use in setting off explosive charges on rail tracks. Igniter is fixed to track and set off by a passing locomotive. This example is a British type which saw use with SOE and other clandestine organisations.
In good overall condition with some minor loss of paint and with the snout fuse holder cut short and crimped in. Scarce example.