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

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

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

Texas Instruments SR40 Calculator w/ Case & Manual - For Parts Or Repair

Texas Instruments TI-30 Vintage Calculator with Case & Manual Vintage 1976

Texas Instruments SR-40 Calculator, with Case/Manual, Untested

Texas Instruments TI-30 Vintage Calculator with Case and Manual

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