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Inv.
2548 V.37 Terrestrial telescope First half of the eighteenth century Jacques Tendre de Moulina Cardboard, leather Length 1470 mm |
Description Terrestrial telescope consisting of seven sections. The tubes, made of cardboard, are covered with green leather, now faded, with gold tooling. The biconvex objective lens, which is held in the smallest tube, has a diameter of 30 mm, an aperture of 20 mm and a focal length of 1070 mm. The eyepiece lens, now missing, was accommodated in the largest section. The second and third sections contain the two lenses of the erector, which, together with the missing eyepiece lens, constituted the composite eyepiece. This instrument can enlarge objects about 16 times. The second largest tube carries the name of "Anthoine Dumner", whereas on the smallest tube can be read the inscription "Jacques Tendre Iray [?] de Moulina". The two individuals cannot be identified. It can be suggested that the instrument, dating to the end of the seventeenth century or the beginning of the eighteenth, is of French construction. |
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