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Texas Instruments TI-68 Black Handheld Advanced Scientific Calculator | eBay
Texas Instruments Calculator Manuals BA-II TI-60 TI-68 Banker Guidebook Lot of 5 | eBay
TI-66 Programmable from 1983 - YouTube
Texas Instruments Ti-68 TI68 Advanced Scientific Calculator Tested Working for sale online | eBay
It is not just scientific, it is Advanced Scientific! Unfortunately there are display problems with this vintage TI-68 (2nd pic). It is otherwise in very nice shape. Can this sub help with
TI-68
Texas Instruments Ti-60x Advanced Scientific Calculator for sale online | eBay