This Casio Business 128KB LCD Personal Information Organizer PDA Calculator is a fantastic vintage piece that will surely impress any collector. With its sleek design and functionality, it is perfect for anyone who loves vintage electronics. The device has been tested and is in great working condition, ensuring that it will meet your needs.

The calculator is loaded with features that make it easy to use, including a large LCD screen and 128KB of memory. Additionally, it has a personal information organizer that allows you to store important information such as contacts and appointments. Whether you're a collector or just looking for a functional vintage calculator, this Casio Business PDA Calculator is the perfect choice.