History of calculating machines

Vector hand drawn illustration of mechanical calculators history. XVII Century. Napier's bones and cylindrical form calculating tables, Schickard's calculating machine, Pascaline. ._. YOU RECEIVE - 1 VECTOR EPS8 - 1 CDR Corell Draw 18 version - 1 JPEG - 1 PNG with transparency - 1 PSD with layered every object on a separate layer . Logo is not included. ._. Thank you for choosing us! Meow!