Telescope objective cap

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Telescope objective cap made of brass. The edge of the cap is textured.

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ID:	ZBA0463.2
Type:	Telescope objective cap
Display location:	Not on display
Creator:	Unknown
Date made:	Unknown
Credit:	National Maritime Museum, Greenwich, London
Measurements:	Diameter: 69 mm;Overall: 17 mm
Parts:	Portable refractor telescope (Telescope) Travelling box for telescope (ZBA0463.1) Telescope objective cap (ZBA0463.2) Telescope eyepiece cap (ZBA0463.3) Telescope tube (ZBA0463.4) Telescope tube cap (ZBA0463.5) Telescope attachment (ZBA0463.6) Telescope attachment cap (ZBA0463.7) Telescope attachment lens (ZBA0463.8) Telescope lens (ZBA0463.9) Telescope lens (ZBA0463.10) Telescope lens (ZBA0463.11) Telescope tube (ZBA0463.12) Telescope tube (ZBA0463.13) Description of the Acromatic Telescope (Telescope description booklet) (ZBA0463.14) Telescope description booklet (ZBA0463.15) Telescope diagram (ZBA0463.16)