Johann MARTIN (1642 - 1721) Equinox sundial in silver and brass. The octagonal plate incorporates a compass with a brass base engraved with the four cardinal points. The rotating hour scale indicates 3-12-9. The brass latitude arc is graduated from 30° to 90°. Signed Johann Martin in Augspurg 48 On the reverse, twenty-five cities listed according to their latitude, from 41° to 60°: Madrid, Venetia, Lyon, Paris, Nürnberg, Copenhagen, etc. Germany, Augsburg, circa 1700 5 x 4.5 cm (minor oxidation, later feet and arch)