FLZ Model-1 Air Pistol (cranked cocking link version)
With thanks to Eberhard for the heads up.
This was a slightly longer version of the FLZ mod. 1.
John Griffiths, author of The Encyclopedia of Spring Air Pistols, said:
[According to catalogues] covering the period 1927-1940... it seems the long version was only offered up to about 1931, long before the FLZ2 came onto the market ca. 1937, so the designation FLZ1 for the standard version obviously did not exist at the time. It was simply called 'the FLZ pistol'. Consequently the long version was always lumped together with the standard model under the one illustration (the one that showed the uncranked cocking lever), and under the one heading "FLZ pistol". So to all intents and purposes they were offered as two versions of the same model.