Casio FX82 calculator I bought in 1982 at the age of 15. Used it throughout school, my apprenticeship and work as a draughtsman. Don't use it much now but it still works
Taschenrechner Casio fx-82LB Fraction in Kreis Pinneberg - Schenefeld | eBay Kleinanzeigen ist jetzt Kleinanzeigen
Casio Scientific FX-82LB Calculator CE4 | eBay
Nice Vintage Casio FX-82C Scientific Calculator in Original - Etsy Hong Kong
How do you remove the batteries from the Casio FX 82 LB : r/calculators