Wilton Catalog References
While commonly believed Wilton sold exclusively to the military during WWII after starting the company in 1941, we have found a small advertisement from 1942 that suggests attempts were made to market the product outside the War Department. This ad from the 1942 edition of The Tool Engineer, while not completely viewable, can be found here.
Subsequent to the war, Wilton begins advertising through multiple periodicals of the day in 1947. Here is an example from the June, 1947 edition of Popular Mechanics.