Operation Manual, page 1
Photo courtesy of [methinksit](https://www.ebay.com/usr/methinksit?_trksid=p2047675.l25590) on eBay, used with permission.
Photo from [this auction listing](https://www.ebay.com/itm/274172898321) of a Casio PT-7.
Operation Manual, page 1
Photo courtesy of [methinksit](https://www.ebay.com/usr/methinksit?_trksid=p2047675.l25590) on eBay, used with permission.
Photo from [this auction listing](https://www.ebay.com/itm/274172898321) of a Casio PT-7.