This Casio DL-220 calculator is a vintage piece that has been well-maintained and tested to ensure its functionality. It features a 12-digit LED display and is made by Casio, a trusted brand in the electronics industry. This calculator is perfect for collectors or anyone who appreciates vintage electronics. Its model number is DL-220 and it was made in Japan. Any modifications or repairs have been made with great care to preserve the calculator's originality.