MATHEMATICS - François BARRÊME (1638-1703, mathematician,... Lot 6

MATHEMATICS - François BARRÊME (1638-1703, mathematician, at the time known as an arithmetician, author of books on bookkeeping and tables of practical mathematics, considered one of the founders of accounting, his name is now commonly used to designate any collection of numerical tables) / Cover sheet of his first work "Livre des comptes faits" (detached page, presented laminated at the top on a paper backing), 1 p small in-8 (9.5 x 16.5 cm), which he signed in his own hand as a sign of authentication (nb: There were many reprints of this work, which was immediately a huge success due to its innovation, both with large financiers and small traders and merchants, so it was copied and counterfeited, so much so that in the 1690s he adopted authentication by his signature) - Rare