The sphere is one and three quarter inches in diameter and made of papier-mache with a plaster coating and 12 copper engraved printed paper gores running from north to south poles affixed, hand-coloured and varnished by the publisher. The sphere is mounted by the use of two polar metal pivots. The case consists of two concave wooden hemispheres made of wood covered in embossed paper and painted black, joined at the equator by a brass hinge, there are two brass hook-and-eye fastenings. Both hemispheres bear 12 gores printed with astronomical phenomena. The rim bears the names of the zodiac. In the centre is an image of the sun surrounded by the earth in the four seasons. The lower hemisphere bears an image of the earth at the centre and the phases of the moon around. In good condition.