The Casio Calculator Power Graphic FX-7700GH is a vintage handheld scientific calculator with a large display and regular key size. Powered by batteries, this Casio model comes boxed with an owner's manual, making it a valuable collector's item for enthusiasts of retro office equipment. Although untested, this calculator is a rare find that showcases the functionality and durability of Casio products from the past. I’m selling this as spares & repairs as I haven’t tested the calculator myself.
eBay