From: The Old Calculator Web Museum
Email: oldcalc@bensene.com
The Casio fx-1 is a great old machine. Unfortunately, I do not have a manual for it, but you can find out more information about the machine on my Old Calculator Web Museum site at http://oldcalculatormuseum.com/casiofx1.html Rick Bensene The Old Calculator Web Museum http://oldcalculatormuseum.com
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