ActionsBuy this image Add this to a collection Share or embed this object Tweet
Please contact the Picture Library if you would like to use this record and image under licence.
|Description||Sinical quadrant. This instrument is designed to measure the angle above the horizon of an object. It is also marked with a sinical scale on the reverse, enabling complex mathematical calculations to be simplified.|
|Date made||circa 1650|
|Credit||National Maritime Museum, Greenwich, London, Rev. George Fisher Collection|
|Measurements||Overall: 13 x 161 x 166 mm|
Do you know more about this?Share your knowledge