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Secretan, Marc Francois Louis

Nationality:  Swiss

Brief Bio:  1804-1867, mathematician; scientific instrument maker, Swiss

until 1844 - professor of mathematics at Academy of Lausanne;
1840 - worked with Friedrich von Martens and Samuel Heer producing daguerreotypes;
1844 - moved to Paris;
1845 - partnership with Lerebours as Lerebours & Secretan; used joint name until 1880s and beyond.
1855 - after retirement of Noel Paymal Lerebours became sole proprietor of Lerebours and Secretan, and signed

Secretan 10cm large table top telescope +/- 1850

Early (+/-1855) 10cm (!) Secretan table top telescope with all the eyepieces and finder scope.
the scope has a very beautiful dark varnish. No cleaning needed. Will leave it as it is.

19th century table top telescopes have normally a diameter of 60mm or 75mm.  Larger models are very rare.

A very nice example of the classic French terrestrial and astronomical refracting telescope, here in a perfect original condition with all original lacquer entir