circa 1980 Casio with clock, similar to fx-8100

[cdmackay]

This might be better in a Casio forum, but I don't know them, so will try here, thanks…

Does anyone know of a Casio calculator from the 1978–1982 period that combined a scientific calculator with a date/time/alarm/calendar clock function?

I can find the fx-8100, which is almost right, but not quite how I remember it. The one I'm remembering was also in a folding wallet with a cut-out, and had a toggle switch for clock/calc modes, but I remember the screen being taller , i.e. more square.

ring a bell with anyone?

thanks…