Letter-sized Accordion Folders (Near East/Union & Marquette)

Looking for about 10 letter-sized accordion folders. About four roughly 3-4” expansion ones and six roughly 5-6” expansion ones. Totally fine if used/marked on. Color doesn’t matter! Happy to pick up from several places; would just like to get at least two from any offerer. Prefer to stay on east side, but would head west for someone offering all 10. Thanks for considering!