FRANCE BUTTERFIELD, à Paris. Horizontal sundial, portable. Octagonal brass turntable with engraved indexes with Roman and Arabic numerals, with compass and triangular tilting style, with birds, folding, on cut-out spring blade engraved with leaves. Signed. On the reverse side, the names and latitudes of twenty-three European cities. Early 18th century. H. (unfolded) : 4 cm - Dim. plate : 7,6 x 6,6 cm. Wear and some stains ; gnomon to be refixed. Michael Butterfield (1635-1724), of English origin, worked in France from 1677.