Supermarket Cash Registers
![supermarket-cash-registers supermarket cash registers](https://www.innovation-creativity.com/wp-content/uploads/2020/12/supermarket-cash-registers.jpg)
Supermarket cash registers with an additional window at right angles to the keys so the customer in a checkout line could see her items being rung up.
By J.Kelly, Albany, New York.
July 1961
You can purchase a cash register from Amazon with an additional window that tilts for your customer to view…