Texas Instruments TI-51-III Statistical Electronic Calculator
Texas Instruments TI-51-III Statistical Electronic Calculator, s/n 670998, fitted with TI BP-7 NiCad battery pack, in leather pouch
Texas Instruments TI-51-III Statistical Electronic Calculator, s/n 670998, fitted with TI BP-7 NiCad battery pack, together with TI model AC 9900/R-UK AC Adaptor
Texas Instruments TI-51-III Statistical Electronic Calculator, s/n 670998, fitted with TI BP-7 NiCad battery pack, in leather pouch
TI model AC 9900/R-UK AC mains power supply adaptor, for Texas Instruments TI-51-III Statistical Electronic Calculator.