A 1902 stone lithograph depicting Houdini's victory in the German courts sold today for $25,000 (plus 20% commission) at Potter & Potter's Rare Posters auction. The color one-sheet by J. Zier, which the auction house calls "Houdini Triumphant", is one of only five known copies. The auction estimate was $15,000/20,000. The poster went to a floor bidder.
A Houdini Challenge broadside from 1915 ("A Peculiar Challenge") sold for $1,900 to an internet bidder. Auction estimate was $1,500/2000. A very nice 1920 Nicola poster featuring terrific Houdini-like escape imagery sold for $4000, beating its estimate of $2,500/3,500.