Vintage Texas Instruments SR-40 Calculator w/ Leather Zipper Case & Manual

Vintage Texas Instruments SR-40 Calculator w/ Case - Tested - Read Description

Vintage Texas Instruments SR-10 Calculator With Leather Carrying Case - Tested

Texas Instruments SR-40 NO PLUG WITH CASE Calculator Rechargeable Model 1977

Vintage Texas Instruments SR-40 Calculator w/ Case & Manual - Works w/ 9V *READ*

Vintage Texas Instruments SR-40 Calculator with Case Works Great

Vintage Texas Instruments SR-40 Calculator with Case & Manual - Working

VTG Texas Instruments TI SR-50 Slide Rule Calculator 1973 PARTS UNTESTED w/case