A 19th Century brass refracting telescope, with rack-and-pinion focusing, signed at the end of the eyepiece Secretan, Paris mounted on a folding oak stand with brass fittings, allowing altitude movement by chain and cog, the alt-azimuth movement by rack-and-pinion - 60in.(152.2cm)high, body tube - 54in.(137cm)long

Details

A 19th Century brass refracting telescope, with rack-and-pinion focusing, signed at the end of the eyepiece Secretan, Paris mounted on a folding oak stand with brass fittings, allowing altitude movement by chain and cog, the alt-azimuth movement by rack-and-pinion - 60in.(152.2cm)high, body tube - 54in.(137cm)long

Lot Essay

Marc Secretan, Professor of Optics at the University of Lausanne, moved to Paris in 1848, to take control of an optical instrument firm, thereafter the production was small but the optical quality high. In 1865 he took a junior partner and his firm was renamed "Lerebours et Secretan". He retired in 1868. This type of stand was specifically designed to fold up when not in use, or for transportation from place to place

More from Engineering and Scientific Works of Art

View All