AN ENGRAVED BRASS HORIZONTAL SUNDIAL WITH EQUATION OF TIME
SIGNED "MADE BY GEORGE ADAMS IN FLEET STREET INSTRUT MAKER TO HIS ROYAL HIGHNESS THE PRINCE OF WALES"
Circular, finely engraved with chapter ring IIII-XII-VIII with every minute indicated, enclosing calendar and minute scale labelled "WATCH FASTER-WATCH SLOWER", the center engraved with compas rose and fitted with gnamon for approcimately 51.50' latitude (e.g. London) third quarter 18th century-- mm. diam.