All 1 through 20. The whole encyclopedia was a copy of Funk & Wagnalls; you got it on installment at a local grocery store, and would shelf volumes on a episodic pacing; you had to wait a couple of weeks for the next book.

Looking someone up in the phonebook: my father had us listed under a fictitious name he had created to be on the mailing list of trade magazines for his competitors….. Any time some one asked for “Mike Fekete”, we knew to “take a message” and ignore the rest.