A substantial collection draughtsmans protractor rules, sectors, metal protractors and parallel rules Various makers, circa 1800 and later Comprising twelve rectangular ivory protractor rules variously engraved with mathematical plotting scales and including examples stamped CARY, LONDON; ADIE, LONDON; G. ROWNEY & Co. LONDON; ELLIOTT BROS, LONDON; FRANCIS SAML CHAMPION and B.J. HALL & CO LTD LONDON and another ivorine; six boxwood, three ivory and an ivorine mathematical plotting rules; five boxwood and two ivory hinged sectors including one stamped W & S JONES * 30 HOLBORN; four ivory parallel rulers, each with brass pivot hinges; twelve brass and two other semi-circular protractors; an ivory sector and matching parallel ruler both stamped W. DIXEY. MATHL INST MAKER, TO HER MAJESTY, NEW BOND ST. LONDON, and a brass sector bearing engraved inscription Butterfield AParis, Pied de Roy, lengths 20cm (7.875 inches) and shorter, (qty). The vast majority of the items in the current lot would have originally been included as part of a draughtsmans drawing instrument set hence the present selection may prove invaluable to a collector seeking to complete an incomplete set.
A substantial collection draughtsmans protractor rules, sectors, metal protractors and parallel rules Various makers, circa 1800 and later Comprising twelve rectangular ivory protractor rules variously engraved with mathematical plotting scales and including examples stamped CARY, LONDON; ADIE, LONDON; G. ROWNEY & Co. LONDON; ELLIOTT BROS, LONDON; FRANCIS SAML CHAMPION and B.J. HALL & CO LTD LONDON and another ivorine; six boxwood, three ivory and an ivorine mathematical plotting rules; five boxwood and two ivory hinged sectors including one stamped W & S JONES * 30 HOLBORN; four ivory parallel rulers, each with brass pivot hinges; twelve brass and two other semi-circular protractors; an ivory sector and matching parallel ruler both stamped W. DIXEY. MATHL INST MAKER, TO HER MAJESTY, NEW BOND ST. LONDON, and a brass sector bearing engraved inscription Butterfield AParis, Pied de Roy, lengths 20cm (7.875 inches) and shorter, (qty). The vast majority of the items in the current lot would have originally been included as part of a draughtsmans drawing instrument set hence the present selection may prove invaluable to a collector seeking to complete an incomplete set.
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.jpg "Quelle: Christie's")
.jpg "Quelle: Christie's")
