Only seen several, and don't remember much: mid 20C, made in Solingen
They show up on ebay once in a while, manyware sold a couple - one was a big 8/8 or so. Maybe you can send him a message, he might even have some for sale in his stash. I think one of the old-timers said they are good shavers
I have one and it takes a good edge. Its a bit lightweight for my liking though, and doesn't glide through because of this.
I was looking for information on the company but couldn't find any.