A brass Butterfield dial, French, early 18th century, signed Butterfield A Paris, the octagonal dial with inset compass well and hinged gnomon with bird indicator, engraved with four hour scales, the reverse with list of twenty seven European towns and latitudes, in original green stained fish skin case, the case 2 x 9 x 7.5cm (3/4 x 31/2 x 3in) For further information on this lot please visit Bonhams.com For further information about this lot please visit the lot listing