HOUGHTONS LTD., London
A Focal-Plane Ticka camera with a Taylor, Taylor & Hobson helically focusing Cooke lens no. 21537, lens cap, two internal film spools and exposed shutter mechanism, in maker's purse.
出版
Lothrop and Auer (1978), Die Geheimkameras, p. 86, 87.
St Denny et.al (1993), Spy Camera, p. 123.
拍品專文
The Focal Plane Ticka was introduced in 1908 and was no longer listed by 1914 making it the rarest production Ticka.