Vintage 1950s or 60s quick adder for dollars/dimes/cents

This is a little handheld “clicker” that counts dollars and cents and goes from $0.00 to $9.99. It’s from the 1950s or 1960s and made in Hong Kong. It was intended to bring to the supermarket to track how much your groceries were going to add up to as you shopped. Apparently 70 years ago no one had to spend more than $10 on groceries… Pickup only. St. Clair West & Spadina Road area.