Portable telescope objective glass cap

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ID:	NAV1512.1
Type:	Portable telescope objective glass cap
Display location:	Not on display
Creator:	Dollond, Peter; Dollond & Aitchison
Date made:	circa 1790
Credit:	National Maritime Museum, Greenwich, London, Caird Collection
Measurements:	Diameter: 60 mm;Overall: 7 mm
Parts:	Portable telescope Portable telescope objective glass cap (NAV1512.1) Portable telescope eyepiece cap (NAV1512.2)