texas instruments ti-1250 calculator from 1975. - YouTube
TI-1250 LED Calculator from 1975 - YouTube
Vintage Texas Instruments Electronic Pocket Calculator With Memory, Model TI -1250, Red LED Display, Made in USA, Circa 1975 | Pocket calculators, Red led, Vintage
Texas Instruments TI-1250 Vintage Handheld Pocket Calculator with Power Supply | RecycledGoods.com
Virtual Museum of Calculators
Vintage Texas Instruments TI-1250 Electronic Calculator Red LED Display with Box | eBay
Vintage Texas Instruments TI-1250 Calculator in Original Box - Working | eBay
Mint in the Box 1975 Texas Instruments TI-1250 Calculator - YouTube