The vortex this morning expelled a coding sheet for an Olivetti Programma 101. We used to have hundreds / thousands of these. I imagine my brother grabbed them when they finally stopped being used. Following on from the discussion here, it struck me that the coding sheets, which I could never quite figure out what they were for, would have made much more sense as being ones for this which was essentially a large, very expensive programmable calculator (though not of course bad for 1965).
And as if by magic when I had a quick look this morning, my stirring up of the cupboard in the smallest bedroom had caused a pristine, albeit folded into four, Programma 101 coding sheet to be disgorged. And here is a manual for the beast http://www.classiccmp.org/dunfield/calc/olpro101.pdf
The coding sheets are similar to those appearing towards the back of the manual, but somewhat nicer looking.
The machine is similar in operation but not as powerful as my old Casio FX-502P programmable calculator. Whatever happened to Casio?