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Réunion de deux rares instruments pour la navigation aérienne

The item was sold for 325

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Reunion of two rare instruments for aerial navigation
- An American World War II sextant "Astro-compass MK II", no. D500, Sperti Inc, Cincinnati
H. 21 cm, in original wooden box with instructions
- A sheet metal and steel estimating calculator by LEPETIT, signed "Thedenat-Lepetit" in Montrouge, in its sliding-lock box.
Mid-twentieth century
Also included: a straborama for remote speed measurement, circa 1930