*Awesome "Cahill Factor" here. And check out that eerie array of non-mediated extreme tricycles.
Gonna be a good day for imaginary gadgets today, I can just feel it.
And the "street printing tricycle" isn't even dead; I know of at least two living cousins.
http://www.dself.dsl.pipex.com/MUSEUM/TRANSPORT/tricycle/tricycle.htmhttp://www.dself.dsl.pipex.com/MUSEUM/TRANSPORT/tricycle/tricycle.htm
Left: The Street-Printing Tricycle: 1895.
This extraordinary tricycle appeared in 1895. The solid rubber wheels are fitted with printing blocks that were continuously inked to leave printing on a hard road surface. The machinery at the rear is not an engine, but includes two inking rollers and a tank for gravity-feed ink supply. How long such a message would remain legible on a busy street where most of the traffic was horse-drawn is a question that I, for one, do not feel qualified to answer.
Quite possibly the municipal authorities objected strongly to having their roads written on. At any rate, the idea seems to have sunk without trace, and the world is not the poorer.
I was under the impression that this machine was featured in La Nature in 1895, but I have been unable to find it there.
*The fatal ease of web research:
