VINTAGE CASIO FX-31 VFD Scientific Calculator Good Condition WORKING £20.00 - PicClick UK
Casio - The small scientific series - - Vintage calculator - Casio The small scientific series - Casio.ledudu.com - Casio pocket computer, calculator, game and watch library. - RETRO CALCULATOR FX PB
Casio fx 31. Dad bought this during his college days in 1978. Running flawlessly since 41 years now. I use it sometimes when I'm bored of using my phone. : r/BuyItForLife
Casio fx 31. Dad bought this during his college days in 1978. Running flawlessly since 41 years now. I use it sometimes when I'm bored of using my phone. : r/BuyItForLife