"Hydrograph Circle By Lenoir"
THIS RARE HYDROGRAPHIC CIRCLE CALLED BY BORDA IS CONTAINED IN ITS WALNUT BOX INCLUDING THE ESSENTIAL OF ITS MANY ACCESSORIES. SLOT IN THE WOOD OF THE COVER, IF NOT VERY GOOD CONDITION. THIS INSTRUMENT WAS USED FOR THE ESTABLISHMENT OF MARINE CARTOGRAPHY. THE BOX 32 X 28 X 8.9 Cm. 
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