Product images of Obverse of Horary quadrant
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We only use premium branded inks, and colours are independently verified to last between 100 and 200 years.
Obverse of Horary quadrant
This is a horary quadrant. It is unfinished and gives an unusual insight into some of the techniques involved in engraving the scales of such instruments. Half-circles, used as a guide when setting out the hour and azimuth lines, can be seen lightly marked on the brass. These would have been polished out when the instrument was complete. The reverse is blank and has therefore not been photographed.
- Image reference: D8808
- National Maritime Museum, Greenwich, London