Manual for Army Cooks 1916 , Military Publishing Company 42 Broadway, Ny. Has the date and soldiers name and company inscribed inside.

Paul Vardakis
21 of Sept 1917
Battery B 347 field artillery
American Lake, Wash

This was part of the 91st division, famously known as the Wild West Division. Fought in major campaigns in France.

The date puts it within the first two months of the American Lake training camp(Camp Lewis) opening.