An 18th Century 'Davis' backstaff, the frame of lignum vitae with boxwood scales, the central cross beam lacking makers placque but dated 1721, the smaller boxwood arc divided 0°-60°,5°-55°,0°-60°, the greater arc well divided with scales on the obverse and reverse and decorated with roses and fleur-de-lys(repair to foot) - 24½in(61.2cm)wide

Details
An 18th Century 'Davis' backstaff, the frame of lignum vitae with boxwood scales, the central cross beam lacking makers placque but dated 1721, the smaller boxwood arc divided 0°-60°,5°-55°,0°-60°, the greater arc well divided with scales on the obverse and reverse and decorated with roses and fleur-de-lys(repair to foot) - 24½in(61.2cm)wide

More from Engineering and Scientific Instruments

View All
View All