![Ancient abacus calculation device. Very old, used, and grunge. Isolated on white background. Back to school, mathematics theme Stock Photo - Alamy Ancient abacus calculation device. Very old, used, and grunge. Isolated on white background. Back to school, mathematics theme Stock Photo - Alamy](https://c8.alamy.com/comp/PG6CWB/ancient-abacus-calculation-device-very-old-used-and-grunge-isolated-on-white-background-back-to-school-mathematics-theme-PG6CWB.jpg)
Ancient abacus calculation device. Very old, used, and grunge. Isolated on white background. Back to school, mathematics theme Stock Photo - Alamy
![Chinese Traditional Calculator, Old Abacus On White Background Stock Photo, Picture and Royalty Free Image. Image 43067683. Chinese Traditional Calculator, Old Abacus On White Background Stock Photo, Picture and Royalty Free Image. Image 43067683.](https://previews.123rf.com/images/pattanwit/pattanwit1507/pattanwit150700088/43067683-chinese-traditional-calculator-old-abacus-on-white-background.jpg)
Chinese Traditional Calculator, Old Abacus On White Background Stock Photo, Picture and Royalty Free Image. Image 43067683.
![Old and ancient abacus made of wood and attached with a metal plate. On a white background It is a tool for calculating. This is China's first calculator. Stock Photo | Adobe Old and ancient abacus made of wood and attached with a metal plate. On a white background It is a tool for calculating. This is China's first calculator. Stock Photo | Adobe](https://as2.ftcdn.net/v2/jpg/02/29/61/45/1000_F_229614591_WgWVKrrDTad3ue2MpR6907UNszhSoLsA.jpg)
Old and ancient abacus made of wood and attached with a metal plate. On a white background It is a tool for calculating. This is China's first calculator. Stock Photo | Adobe
![Old and ancient abacus made of wood and attached with a metal plate. On a white background It is a tool for calculating. This is China's first calculator. Stock Photo | Adobe Old and ancient abacus made of wood and attached with a metal plate. On a white background It is a tool for calculating. This is China's first calculator. Stock Photo | Adobe](https://as2.ftcdn.net/v2/jpg/02/29/61/45/1000_F_229614551_WQxWdFJyWBEYakZTWC1PKn23BgbQR2Un.jpg)
Old and ancient abacus made of wood and attached with a metal plate. On a white background It is a tool for calculating. This is China's first calculator. Stock Photo | Adobe
![Old Abacus Wooden Abacus Vintage Abacus Headstock Stock Image Antique Stock Photo by ©Nostalgishop 216155776 Old Abacus Wooden Abacus Vintage Abacus Headstock Stock Image Antique Stock Photo by ©Nostalgishop 216155776](https://st4.depositphotos.com/11835426/21615/i/1600/depositphotos_216155776-stock-photo-old-abacus-wooden-abacus-vintage.jpg)