Sommeregger's Sammelsurium feels very much obliged to respond to typospherians' requests. As suggested by Richard, here is a quick overview of the electric toy typewriter I took home from Cologne. It is the Electric 600 model produced by Jolux. I am still searching for information on this company. Working hypothesis is that it is a French company, and that the name would derive from "jouets" (toys) and "luxe"? TO BE ASCERTAINED. Until then, some evidence of this rather original construct: