Mariner's astrolabe

This is an early 20th century brass replica of the 'Valentia' mariner's astrolabe, NAV0022.
Graduated quadrantally to show altitude ( i.e. 90 degs at top under thumb ring). Machine drawings made April 1961 in Astrolabes box file. See office correspondence Adams A 1956-60.

Object Details

ID: NAV0020
Type: Mariner's astrolabe
Display location: Not on display
Creator: Prior, E. H.; Adams, Edgar Tarry
Date made: 1910
Credit: National Maritime Museum, Greenwich, London, Adams Collection
Measurements: Diameter: 178 mm; Weight: 2249g
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