Caption

Slide rule on book, calculating aid

Date

Jan 01, 2025

Credit line

Photo12/ImageBROKER/Jürgen Pfeiffer

Reference

BRK26G72_074

Model release

No

Property release

No

License type

Royalty free

Available size

76.5Mb (25.5Mb) / 21.1in x 14.1in / 6331 x 4221 (300dpi)

Keywords

calculate study book page pencil knowledge abacus Calculation aids field of education aid pen deserted scale education learn mathematics book educational system no one counting frame math No People nobody uninhabited empty calculating studying fields of education abacuses pencils aids pens scales books learning studies calculates side rule learns