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Exhibition "Bauen mit Stein" Freilichtmuseum Finsterau, 2003 left photo: Floating disc fountain by Hans Polterauer When the square discs turns, its design changes from a cross to a square star. The disc floats weightlessly and without wear and tear on the round base plate. |
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Prestressed granite flagpole Height: 720 cm, Diameter: 10 - 14 cm |
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 The winner of the International Competition "Ideas in Granite for the Urban Environment" Hubert Maier. |
 This prestressed granite footbridge is only 4 cm thick but carries a load of 350 kg per square metre. |
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