NUIS, 'T GEBRUIK VAN HET RECTANGULUM CATHOLICUM GEOMETRICO, ZWOLLE: GERARD TYDEMAN, 1686

4to (194 x 142mm.), 3 engraved plates (2 folding, one small), woodcut initials, diagrams and illustrations (some illustrations hand-coloured), woodcut plate, with final blank, contemporary vellum, vellum slightly creased

bought from Bernard Quaritch, London, 1993

Tomash & Williams N50; Crone Library 319; Hoogendoorn pp.697-698 Nui02; STCN 05479885X

Condition is described in the main body of the catalogue, where appropriate.
"In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. 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 Sotheby's 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."

"Nuis’ sector is one in which the movable arm is pivoted on a pin that allows it to be moved to any of several different sites. This form of sector, first described by Bramer in 1617, eliminates the hinge—one of the major problems in construction—and also allows for more convenient placement of the scales. It has the disadvantage of being more difficult to use with accuracy" (Tomash & Williams).