The term 'OLD COUNTER' can be solved by the word 'ABACUS', which is a 6-letter word. An ABACUS is an ancient counting device that was used in many parts of the world, including China, Japan, and the Middle East. It consists of a frame with beads or other objects that can be moved along rods or strings to perform calculations. The ABACUS is still used in some parts of the world today, although it has largely been replaced by modern calculators and computers.