Arrived today, another fairly obscure German brand - Kasper. They made their own movements and a there is a little history here:
bidfun-db Kasper_000: Kasper & Co., Pforzheim
This features a Kasper 900 or 901 movement:
bidfun-db Kasper_900: Kasper 900
The only markings are 11 and the letter U under the balance.
Anyway, the plating and dial are in very good condition and it works (so far).
I was the only bidder at the start point of £10.