This Texas Instruments TI-55 Vintage Calculator is a true gem for collectors and enthusiasts of vintage electronics. The calculator comes with its original box, manual, and charger, making it a complete set. The calculator was manufactured in the United States and has been modified by replacing the internal BP-7 NiCad batteries. This calculator is a great addition to any collection of vintage calculators and electronics. It is a rare find for those interested in the history of technology and the development of electronic devices. The calculator is being sold as-is and does not come with any guarantees or warranties.