The Vintage Casio JS-10 Electronic Calculator is a fully functional handheld device that boasts a regular key size and a basic type with an LCD display. Powered by solar energy, this calculator was manufactured in Japan by Casio. Its compact size makes it convenient for everyday use in the office or on the go. With its sleek design and reliable performance, this Casio JS-10 model is a great addition to any collection of vintage office equipment.