Giant Rarity: Reflection Telescope »Foucault/Secrétan«, c. 1850
 Rare French table telescope by "Foucault", marked by "Sectrétain, Paris", with name plate on tube. A sensational collector's item!
Estimate: € 5,000/7,000
US$ 6,250/8,750
Reserve: € 3,800/US$ 4,750


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