Clue: Ancestor of the adding machine

Answer: ABACUS

Length: 6

---

Similar Clues:

• Basic adding machine (ABACUS with 6 letters)
• Office machine (e.g. ADDER with 5 letters)
• Kind of office machine (ADDING with 6 letters)
• Vending-machine offering (COLA with 4 letters)
• Post-office machine (e.g. DATER with 5 letters)
• "The Adding Machine" playwright Rice (ELMER with 5 letters)
• Type of office machine (FAX with 3 letters)
• Modern office machine (FAX with 3 letters)
• Common office machine (FAX with 3 letters)
• Using an office machine (FAXING with 6 letters)