abaci
abacus
abacuses
accounting
antique
arithmetic
background
black
blackboard
board
calculation
chalk
chalkboard
chinese
counting
drawing
drawn
education
empire
engraving
etching
frame
hand
history
illustration
inca
isolated
japan
math
mathematic
mathematical
old
pan
retro
roman
russian
schoty
side
sketching
soroban
souanpan
suan
suanpan
tableyupana
tool
traditional
view
vintage
yupana
定額
Abacuses around the world. Vector hand drawn illustration of the different abaci. Yupana – Inca Empire, Roman abacus, Schoty – Russian, Suanpan – Chinese and Soroban – Japan.の素材 [FY310143929731]
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