In New Zealand, if it's coming to the end of their summer and a dad says he's buying stationery for his kids ... that doesn't mean he's sending them away and buying pretty paper and envelopes for them to write home with.
Over there, at back to school time, "stationery" is a word for school supplies.
I was confused for a moment, but then I remembered that in our part of the world "stationer" used to be the name for an office supply store. About a hundred years ago. The Rosenthals (who gave us Rosenthal boxes of marbles and who Berry Pink worked for before starting out on his own) -- they specialized in rubber items, including erasers -- so one could sometimes read about them in stationer trade publications.
https://books.google.com/books?id=TmBYAAAAYAAJ&pg=RA20-PA8#v=onepage&q=rosenthal&f=false