![File:Vintage Sperry Remington Model SSR-8 Electronic Pocket Calculator, Identical To The Casio fx-10 Except For Branding And Color, Made In Japan, Circa 1974 (14213112033).jpg - Wikimedia Commons File:Vintage Sperry Remington Model SSR-8 Electronic Pocket Calculator, Identical To The Casio fx-10 Except For Branding And Color, Made In Japan, Circa 1974 (14213112033).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/thumb/9/91/Vintage_Sperry_Remington_Model_SSR-8_Electronic_Pocket_Calculator%2C_Identical_To_The_Casio_fx-10_Except_For_Branding_And_Color%2C_Made_In_Japan%2C_Circa_1974_%2814213112033%29.jpg/1694px-thumbnail.jpg)
File:Vintage Sperry Remington Model SSR-8 Electronic Pocket Calculator, Identical To The Casio fx-10 Except For Branding And Color, Made In Japan, Circa 1974 (14213112033).jpg - Wikimedia Commons
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![Casio FX-115W PLUS Scientific Calculator, Solar/Batt., 10-Digit Display, Hard Case, Display Digits10, 2-Line Formula/Results Display, Formula Notation Algebraic, Storage Memory 7, Variable Statistics One, Variable Regression Analysis (FX 115WPLUS, FX ... Casio FX-115W PLUS Scientific Calculator, Solar/Batt., 10-Digit Display, Hard Case, Display Digits10, 2-Line Formula/Results Display, Formula Notation Algebraic, Storage Memory 7, Variable Statistics One, Variable Regression Analysis (FX 115WPLUS, FX ...](http://salestores.com/stores/images/images_747/FX115WPLUS.jpg)