The Texas Instruments TI-86 Graphing Calculator from 1997 is a vintage handheld device that offers various key features such as equation solving, programmability, and graphing capabilities. With a regular key size and display, this calculator is powered by batteries and has 128K RAM for memory storage. Designed by Texas Instruments, this model is now considered a collectible item due to its retro appeal and functionality. Ideal for office and educational purposes, this calculator is a valuable addition to any vintage tech collector's stash. Missing cord!! Also I have edited photos not to reveal written personal information on calculator cover. Small amount of corrosion noted in battery box but can confirm this does work.