Ø A 13½IN. RADIUS VERNIER OCTANT BY MARY DICAS, LIVERPOOL, CIRCA 1800
signed and inscribed on the cross bar Made at M Dicas s Mathematical Shop / Liverpool, the scale divided to 100º with 'SBR' division mark impressed to middle, pinhole sights, fixed shades and threaded pencil top, contained within original stepped keystone case with decorative lock escutcheon and inked owner's name Cornelius Woodf. in lid partially obscured by trade label for George Bradford, 99 Minories -- 17½ x 15in. (44.5 x 38cm.)

Mary Dicas worked from 1797-1806 when she married George Arstall and they continued as Arstall, Dicas & Co and other variants until about 1813; George Bradford, an optician, worked from 99 Minories between 1817 and 1851 where he sold new and second-hand instruments.

Condition Report
In good original condition, apparently with much remnant gilt finish to the brass components; pencil missing from threaded head; space for interchangeable scales - as the first set are fixed this could be a result of old components which were being used up, or a later owner having a permanent set secured in place. The lid of case is loose off one hinge and the labels are torn along joints.

We are pleased to provide you with a general report of the condition of this property. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Charles Miller Ltd is merely a subjective, qualified opinion. Prospective buyers should also refer to any Important Notices regarding this sale, which are printed in the Sale Catalogue. NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING A LOT, ALL LOTS ARE OFFERED AND SOLD “AS IS” IN ACCORDANCE WITH THE CONDITIONS OF BUSINESS PRINTED IN THE SALE CATALOGUE.