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Tubes
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Inv.
3449.11 V.19 Tubes of composite eyepiece End of the seventeenth century - First half of the eighteenth century Unsigned Cardboard, paper Length 129 mm |
Description It is arranged as a composite eyepiece, consisting of three cardboard tubes. The biggest is covered in green paper. Inside it can slide the other two tubes. The smallest tube consists, in its turn, of two parts. The length of the whole unit, when mounted, is 129 mm. The lenses are missing. |
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