VTG Texas Instruments TI-30 Electronic Slide-Rule Calculator Case Manual Works

Condition: Very good pre-owned vintage. Includes case and manual. Tested and working with loose 9V. Item includes original rechargeable battery, but is quite corroded and would need cleaning. However, loose 9V also works in calculator. Sticker on side, removeable. The door is attached to the rechargeable battery as far as we can tell. Estate sale find. Item is tested and working well. Please refer to pictures for best description. Inquiries and reasonable offers always welcome! Vintage Texas Instruments TI-30 Electronic Slide-Rule Calculator W/Case Manual. Pre-owned very good condition. No cracks, marks, stain on the unit. Case is in excellent condition as well as the manual. Needs new battery. Tested out and works great. Technical details: Display is 8 digits, red LED. Four function, memory, scientific functions. Integrated circuit - Texas Instruments TMC0981. 9v (PP3 battery). 4.0" x 6.25" x 1.25" VTG Texas Instruments TI-30 Electronic Slide-Rule Calculator Case Manual Works