The inventor was Polish, not Austrian. His name was Jan Scztepanic, or some such spelling. He lived and worked in Vienna and had a Viennese backer. The fullest account of SLC's interest in this invention -- a link between Jacquard weaving and photography, as I understand it; Twain himself sat for a carpet por trait -- is in Carl Dolmetsch's _"Our Famous Guest": Mark Twain in Vienna_. A great book, by the way, not to be missed by any Twain enthusiast. Andy Hoffman