Casio fx-451 Scientific Solar - Calculator - Vintage - Works - No Battery Needed | #1885044747
Tom💙 on Twitter: "@SWRetroComp Cool. Made me remember this bad old boy Casio calculator I've had since 1984: The fx-451m (still works!). https://t.co/3RWA7ZgMd0" / Twitter
Calculadora cientifica casio fx - 451 - Verkauft durch Direktverkauf - 47152598
Cantares Virtual Calculator Museum
Techniktagebuch — 1987
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