Pre-Calculator Counting Device
This page is the CodyCross answer for the clue below from Singapore, Group 2030, Puzzle 5 (Urban Farming).
Question is: Pre-Calculator Counting Device
and the answer is: ABACUS
Word Meaning:
ABACUS — (historical, obsolete) A table or tray scattered with sand which was used for calculating or drawing.
Definitions from Wiktionary.