Mapleine Dainties cookbook
This cookbook is undated but is probably from the 1900s-1910s (ads in 1907-1914 mention this booklet, and nothing in the contents contradicts this early date). Lots of interesting recipes using Mapleine, from Seattle's Crescent Manufacturing Company. I will be doing a post about Mapleine on ResurrectedRecipes.com soon.
I should add that there were versions of Mapleine Dainties right up to the 1920s. The design of this one is clearly earlier, though. (There is a later edition with a blue cover and possibly 1920s-style graphics, for example.)