This vintage Casio HS-7 calculator is a great addition to your collection of vintage electronics. With its solar power source, you can easily use it without worrying about batteries. It has a basic design, but it's a perfect pocket-sized calculator that's easy to carry around.

The calculator has been tested and is in great working condition. It features an 8-digit display and regular-sized keys for easy use. This vintage calculator is a must-have for collectors and those who love vintage electronics. It's a great conversation starter and a perfect addition to your collection.