Rudimentary Counting Machine With Moving Beads

This page is the CodyCross answer for the clue below from London, Group 496, Puzzle 1 (Churchill Arms).

Question is: Rudimentary Counting Machine With Moving Beads

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.

Rudimentary Counting Machine With Moving Beads - London CodyCross Answers | CodyCross Solutions