1809 ORIGINAL MANUSCRIPT CYPHERING BOOKS [2] HANDWRITTEN BY A FARMER, TRADESMAN AND SOON TO BE PARTICIPANT IN THE WAR OF 1812

On offer are a super pair [2] of 1809 manuscript cypher/mathematics books handwritten by David Wiley who, casual research finds, was a farmer and veteran of the War of 1812. It appears that David was born in Hopewell Pennsylvania and later of Harford Maryland, near Baltimore. Book 1 measuring 13" x 8", has a marbled softcover which is lightly worn, and contains about 70 pages that are all written in a nice but sometimes uneven calligraphic hand. Book 2 has about 59 pages [last 2-3 pages show 1812 trade transactions using his learned skills], covers absent and slightly small than Book 1 as such. Equations include: apothecary weights, avoirdupois weights, troy weights, promiscuous questions, addition of federal money, vulgar fractions, interest, insurance commission and brokerage, compound interest, barter, fellowship, foreign exchange+++ Both books have faults: staining, chipping, some page losses but hardly any loss of text. Overall Fair+.; Manuscript; 8vo - over 7¾" - 9¾" tall; KEYWORDS: HISTORY OF, CYPHERING, CIPHERING, MATHEMATICS, ALGEBRA, TRIGONOMETRY, DAVID WILEY, HARFORD, MARYLAND, BALTIMORE, EDUCATION, COMPLEX EQUATIONS, GEOMETRY, ALGEBRA, CALCULUS, STATISTICS, SCIENTIFIC NOTATIONS, MATHEMATICAL EQUATIONS, HANDWRITTEN, MANUSCRIPT, DOCUMENT, LETTER, AUTOGRAPH, DIARY, JOURNAL, LOG, KEEPSAKE, WRITER, HAND WRITTEN, DOCUMENTS, SIGNED, LETTERS, MANUSCRIPTS, HISTORICAL, HOLOGRAPH, WRITERS, DIARIES, JOURNALS, LOGS, AUTOGRAPHS, PERSONAL, MEMOIR, MEMORIAL, PERSONAL HISTORY, AMERICANA, ANTIQUITÉ, CONTRAT, VÉLIN, DOCUMENT, MANUSCRIT, PAPIER ANTIKE, BRIEF, PERGAMENT, DOKUMENT, MANUSKRIPT, PAPIER OGGETTO D'ANTIQUARIATO, ATTO, VELINA, DOCUMENTO, MANOSCRITTO, CARTA ANTIGÜEDAD, HECHO, VITELA, DOCUMENTO, MANUSCRITO, PAPEL,