I'm a bit stumped with this one.....it's a Corporate Logo which appears on my latest piece of 'Schoenheit der Arbeit' porcelain...... SdA stuff very often has such logos as it was officially issued to organizations in the Third Reich for use in offices and canteens, station cafeterias, train restaurant cars, and suchlike. The logo ( which I've also seen on a WWII cigarette lighter, probably a 'give away' ) looks to me like two stylised electrical plugs.... Any ideas, anyone ?
