print. engraving. circular in four quartile segments, paper mounted on cloth with bound edges. Geometrical projection of two thirds of the [terrestrial] sphere by Col Sir H James RE, FRS, MRIA &c, Besse Tenus Terrarum Oculis Praetenditur Orbis (to be obtained of the agents appointed for the sale of the Ordnance Map) c1850, [features path of the pole due to precession considered as uniformly described in the period of 25800 years, May to June, horologium 1850], 69 cm diameter