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Terrestrial
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Inv.
3493 V.36 Terrestrial telescope Second half of the seventeenth century Unsigned, Italian construction Cardboard, paper Length 1220 mm |
Description Terrestrial telescope consisting of five sections. The tubes are made of cardboard. The largest, covered with green paper, contains the biconvex objective in a wooden mount. The other tubes are covered with marbled paper. The fifth section contains a small tube divisible into two parts with three biconvex lenses forming the composite eyepiece. The quality of the glass and the characteristics of the composite eyepiece suggest that this is an Italian instrument of the late seventeenth century. |
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