This bookmark was made in the US by The American Art Works of Coshocton, Ohio. It is a celluloid advertising bookmark for the Kellogg Furniture Co. It is a calendar for the years 1910 - 1915 with a rotating dial in the back. The instructions read "Turn wheel until month appears in column with present year. Top will show days of the week. Use 1912 printed in red for JAN. and FEB (Leap Year)." It also has the birth stones for each month.