Product code: Vintage, buy Texas Instruments SR-10 slide rule calculator 1973 model
DESCRIPTION buy This is an example of the first model of a scientific calculator marketed by Texas Instruments. The handheld electronic calculator has a black and ivory-colored plastic case. with an array of twenty-three plastic keys. The keys and the keypad have yellowed over the years but are still quite legible. The first SR-10 was produced in 1971. The model that I have  is from 1973.  The original owners manual and vinyl case is included with this calculator,however, I do not have the battery charger. I have installed modern batteries in the calculator. The calculator in case are a little dusty, the zipper on the case does not function. The calculator functions well. the led screen is not blurry. It's only because of the photo.  Item will ship to you from a clean smoke free environment, packed carefully in a box .
DESCRIPTION buy This is an example of the first model of a scientific calculator marketed by Texas Instruments. The handheld electronic calculator has a black and ivory-colored plastic case. with an array of twenty-three plastic keys. The keys and the keypad have yellowed over the years but are still quite legible. The first SR-10 was produced in 1971. The model that I have  is from 1973.  The original owners manual and vinyl case is included with this calculator,however, I do not have the battery charger. I have installed modern batteries in the calculator. The calculator in case are a little dusty, the zipper on the case does not function. The calculator functions well. the led screen is not blurry. It's only because of the photo.  Item will ship to you from a clean smoke free environment, packed carefully in a box .