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antique cubes in zinc with wooden mathematic blocs/ rules divided in centimeters used in school wood covered with paper ca 1920 used condition cube 10 cm x 10 cm x 10 cm
info : dirk.balduyck@telenet.be
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antique cubes in zinc with wooden mathematic blocs/ rules divided in centimeters used in school wood covered with paper ca 1920 used condition cube 10 cm x 10 cm x 10 cm
info : dirk.balduyck@telenet.be
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