![Vintage 1970s Texas Instrument SR-50 Slide-Rule Calculator Boxset – Society of St Vincent de Paul Council of Pittsburgh Vintage 1970s Texas Instrument SR-50 Slide-Rule Calculator Boxset – Society of St Vincent de Paul Council of Pittsburgh](https://svdppitt.org/wp-content/uploads/2021/08/IMG_10821.jpg)
Vintage 1970s Texas Instrument SR-50 Slide-Rule Calculator Boxset – Society of St Vincent de Paul Council of Pittsburgh
![Vintage 1970s Texas Instrument SR-50 Slide-Rule Calculator Boxset – Society of St Vincent de Paul Council of Pittsburgh Vintage 1970s Texas Instrument SR-50 Slide-Rule Calculator Boxset – Society of St Vincent de Paul Council of Pittsburgh](https://svdppitt.org/wp-content/uploads/2021/08/IMG_10771-600x600.jpg)
Vintage 1970s Texas Instrument SR-50 Slide-Rule Calculator Boxset – Society of St Vincent de Paul Council of Pittsburgh
![Vintage 1970s Texas Instrument SR-50 Slide-Rule Calculator Boxset – Society of St Vincent de Paul Council of Pittsburgh Vintage 1970s Texas Instrument SR-50 Slide-Rule Calculator Boxset – Society of St Vincent de Paul Council of Pittsburgh](https://svdppitt.org/wp-content/uploads/2021/08/IMG_10761.jpg)
Vintage 1970s Texas Instrument SR-50 Slide-Rule Calculator Boxset – Society of St Vincent de Paul Council of Pittsburgh
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