I have a APF Mark 40 pocket calculator.   This is from the early
1970's and comes with the box, though no manual.  Box in ratty
shape, but calculator is excellent.  Original bubble wrap bag al
so.   Runs on 9v battery wall adpater (not included).  works
perfectly and has the mini nixie tube type display.  big feature
is it has percent key.  No memory functions, square root, etc
in those days.   Will accept the best offer.
Tom
--- PCBoard (R) v15.23/M 2
---------------