Graphometer belonging to George Tryon, the first Commander of HMS Warrior, before 1860
The device is used to measure angles and this one is semi circular with a compass in the centre, a movable arm and four sights. The graphometer remains in its original box. Tryon served aboard Warrior from 1861 to 1864. As Second-in-Command under Arthur Cochrane during her Warrior's commission, Tryon was responsible for moulding the first crew to serve aboard her, and therefore the first naval crew ever to serve in an iron framed warship. He later became a Rear Admiral and was knighted for his service to the Royal Navy.












