executives on laptops, older man with abacus - abacus old stock pictures, royalty-free photos & images
little boy dressed as acccountant using abacus - abacus old stock pictures, royalty-free photos & images
younger executives on laptops, older with abacus - abacus old stock pictures, royalty-free photos & images
1920s 1930s CHINESE MAN USING ABACUS BOOKKEEPER ACCOUNTING ACCOUNTANT WORKER OFFICE SCRIBE FINANCE HONG KONG CHINA
Fabric merchant calculating the cost of his merchandise on an abacus, Russia, engraving from Russia, by Jean-Marie Chopin , Venice, 1842.
Russian merchant makes calculations by means of a small frame with small stones, engraving by Lemaitre, Vernier and Chaillot from Russie by Jean...
little boy dressed as acccountant using abacus - abacus old stock pictures, royalty-free photos & images
a view of the school room with a blackboard in the corner and writing slates set out on desks at sud - abacus old stock pictures, royalty-free photos & images
neat rows of colored beads on an abacus with a single blue bead to the side - abacus old stock pictures, royalty-free photos & images
old abacus and businessmen on gray background - 3d rendering illustration - abacus old stock pictures, royalty-free photos & images
The Suan Pan is the oldest form of abacus still in use; numbers are set by moving beads up and down to touch the horizontal cross-bar. There are nine...
old abacus and businessmen on gray background - 3d rendering illustration - abacus old stock pictures, royalty-free photos & images
senior woman helping her granddaughter with math problems - abacus old stock pictures, royalty-free photos & images
senior mother and mature adult daughter using abacus - abacus old stock pictures, royalty-free photos & images
man counting colorful beads on a chinese calculator. - abacus old stock pictures, royalty-free photos & images
This picture taken on July 13, 2017 shows 82-year-old programmer Masako Wakamiya using a laptop in her home in Fujisawa, Kanagawa prefecture. When...
old man make exercise why he is protected alzheimer's disease - abacus old stock pictures, royalty-free photos & images