TZWIVEL, ARITHMETICE OPUSCULA DUO, COLOGNE, 1507, MODERN BOARDS

4to (191 x 134mm.), 10ff., last leaf blank (containing manuscript notes), modern marbled boards, light staining

Tobias Deak, of Nitra (formerly in Hungary, now Slovenia), notes on final blank; Zisska & Kistner, Auktion 12/I: Von Kepler bis Einstein, 24-25 October 1988, lot 754, DM 6,000, Erwin Tomash

Tomash & Williams T69; VD16 T2432 (listing 4 copies); Smith, Rara arithmetica p.84; USTC 613099

Condition is described in the main body of the cataloguing, 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."

RARE. Tzwivel (also known as Dietrich Zwyvel) was also a printer in Münster from 1514, using Ulrich Zel's printing material. These two tracts were first published in Cologne in 1505. The first contains "a brief explanation of the writing of numbers and the fundamental operations" (Smith, p.86).