Possible Clues:

• Old counting-frame
• An old counting frame
• Where an adder slides to and fro?
• Has an influence on the count, as what's monitored is not in sodium carbonate
• Calculator with beads
• Ancestor of the adding machine
• Calculating device
• Old counting frame with beads
• Ancient calculator
• A graduate getting to use profanity briefly? You can count on it!