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Title: Pocket telescope objective lens cap [Go to resource]
Description: Objective lens cap for the non-achromatic telescope Focal length; 26". O.G.diameter; 0.7". Marv Bolt dates this as 1720-40. Note paper on eyepiece unit. Publisher: "http://collections.rmg.co.uk/" Source: Royal Museums Greenwich Identifier: http://collections.rmg.co.uk/collections... Go to resource More Like this...
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