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Title: Spirit level tube [Go to resource]
Description: Spirit level tube for a portable altazimuth. Case in KB1288 (front). Publisher: http://collections.rmg.co.uk/page/7d7ded6fb50d6031e2884961a200be58.html Source: Royal Museums Greenwich Identifier: http://collections.rmg.co.uk/collections... Go to resource More Like this...
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