Alignment ring signed Berthelemy (Victor... - Lot 131 - Euvrard & Fabre

Lot 131
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Estimation :
150 - 150 EUR
Result with fees
Result : 256EUR
Alignment ring signed Berthelemy (Victor... - Lot 131 - Euvrard & Fabre
Alignment ring signed Berthelemy (Victor Alfred Berthélemy 1841-1902) in its original box. Combination of achromatic magnifying glasses centered at the focus, reflectors at the verniers, a level on the axis to ensure a perfect plunge of the bezel. Steel model with silver and brass vernier Circa 1880-1900. Some missing parts Dim: 28 cm for the bezel and 33 cm high for the case
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