http://www.vuz-essen.de/rip/2001/wi/s03.htm

mass produced general purpose bikes. heavy and durable. these are
what the little, old ladies ride every day to the market. zillions produced
by WKC (Weyersberg, Kirschbaum & Cie) in Solingen - weapons mfg,
knives/bayonets/swords.

http://cgi.ebay.de/ws/eBayISAPI.dll?...category=30752