Lot of 2 vintage calculators including a Texas Instruments TI-81 graphing calculator with original slide cover and a Hewlett Packard HP 19BII Business Consultant II financial calculator. Both units are non-working and sold as-is for parts or repair. Good cosmetic condition overall with normal wear from age and use. Great lot for collectors, restoration, or parts harvesting. Included: * Texas Instruments TI-81 Graphing Calculator * Original TI slide cover * HP 19BII Business Consultant II Calculator Condition: Non-working / for parts or repair only. Untested beyond basic inspection. Sold as-is with no guarantees. Search keywords/tags: TI-81, HP 19BII, vintage calculator lot, graphing calculator, financial calculator, Texas Instruments, Hewlett Packard, calculator repair, retro electronics, parts only, collectible calculator