Siemens A G formerly Siemens & Halske
1847 "Telgraphenanstalt Siemens & Halske" founded by Werner Siemens and Johann Georg Halske in Berlin
The company grew over the years and is now known as Siemens A.G., a world wide industrial complex.
These brief notes extracted from information in Kochmann's book on European trademarks. The AHS electrical group has much further information.
Part of Barrie's virtual Clock Museum