Recently I discovered an HP-97 towed away somewhere in the office and I managed to become the administrator of it. Inside the (somewhat torn) cardboard box I found:
an HP-97 with paper roll and defective card reader
an adapter
a carrying case
an Owner's handbook and programming guide
a set of programming pads
a brochure on software
the standard pac manual
and ...
a set of programming cards of the standard pac
Now, this last item seems special. A case with 15 preprogrammed cards, 24 blank cards and an abrasive card for cleaning the recording head. This very complete set is in very unused condition.
The cards are numbered from 1 to 15 with a letter attached to it. At first I thought that A and B were the first and second card of the same program, but I'm in doubt now. The manual mentions f.e. 12B as the only card. All but one card are as described. Nr. 11 being the exception: 11A in the manual, 11B on the card itself. It looks more like a revision indicator to me.
I've put the thing on my desk now; looks cool and it's always handy for a quick calculation.
PS. behind the box was a second HP-97 with carrying case and adapter. This set in bad condition, though it still computes.