Uecker, Günther (born 1930 in Wendorf) - 'Do it yourself', multiple of an unlimited edition: 300g hammer hanging on two nails on a wooden board, board signed in pencil lower right, length hammer: L.c.30cm, board measurements: c.34,8x16,4x2,4cm , on the verso stamp ''Günther Uecker Do It Yourself Vice-Verlag Remscheid''