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Lot n° 316

CLITOGRAPH Talking slope level in brass and metal...

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CLITOGRAPH Talking slope level in brass and metal with brown patina. Composed of a frame in which a bubble level moves on a circular arc, this topographical instrument is used to measure the slope of the ground. Signed LEFEBVRE in Paris. c. 1900. Height. 23 cm; Width. 31 cm; Depth. 2 cm