There are 587 stone lithograph magic posters on display within the collection belonging to Norm and Lupe Nielsen (both USA). The collection, which today consists of approxinately 2,000 contemporary and vintage posters began in 1991, with two Fu Manch posters that were in pieces, out of which was made one to frame. Within the collection are 34 Houdini posters, 14 of which are coloured lithographs (four are 3-sheets and two are 8-sheets). As of 12 March 2005, those vintage posters on diplay included:- 18 Window Cards 3 Very Old Prints (19th century) 141 Panels 36 1/4-sheet Posters 199 1/2-sheet Posters 117 1-sheet Posters 10 2-sheet Posters 43 3-sheet Posters 3 6-sheet Posters 16 8-sheet Posters 1 9-sheet Poster One of his favourite posters in his collection is a full length portrait of Kellar (3-sheet). To reproduce one today, using the lithograph methods, would cost around US$150,000 (£77,800).