I don't recall one of the Taubenflinte shooters of the period having that name. But the BSW models of the Bock Doppelflinten had similar names like Modell Nauheim(Spezial)O/U & Modell Bahrenfeld(Taubenflinte System Anson & Deeley)SxS. I want to think that the Modell is either the name of a brace of Taubenflinte shooters or the name of a shop/firearms merchant in Norrköping, Sweden: http://en.wikipedia.org/wiki/Norrk%C3%B6ping (highlight & search or copy & paste)

Kind Regards,

Raimey
rse