Ernemann Autex 2a
Several times when I am using a classic camera people are surprised by the fact that they have a self-timer to delay the shutter. I think that 'time' is becoming something digital and they don't connect immediately time and mechanisms. Well, actually as soon as the amateur reached to the image making there was a need to allow the photographer to be part of the scene. Sophisticated shutters had a built in timer but for the popular cameras there was this kind of device featured in this page that could be set to slowly push the cable release button.