Toronto. We casually use our camera’s self timer today, but there was a time when such devices were a luxury and available only as an accessory.
Leitz made its self timer for the Leica from 1938 – 1965. The little cylindrical gadget screwed into the release button and gave the user 10 – 15 seconds to run from the camera and tripod, turn, and pose.
The code name for the timer was APDOO or with a little leather purse, ASKOO. It could be used to steady the camera for a time exposure too. Later Leicas could be purchased with the timer built-in.