Here's some history on Henckels and its trade marks:

ZWILLING J.A. HENCKELS :: Company profile :: The history of the ZWILLING J.A. HENCKELS brand

And here's some more in German: ZWILLING J.A. HENCKELS :: Unternehmensinfo :: Die Geschichte der Marke Zwilling

and in PDF: http://www.zwilling.com/media/pdf/zw...4/00000004.pdf