Ivory memorandum book.
This memorandum book, likely made in America in the 19th century, features thin, erasable ivory leaves with hand-engraved headlines designating six days of the week. Sunday is not featured—presumably, in observation of the sabbath. Nevertheless, the owner has designated “Sunday” as part of a list on the back of the leaf for “Monday,” and has recorded in pencil a number of tasks completed that day.
From the collection of Rare Book School