During World War II, a large part of the production capacity of the East Liverpool area potteries was devoted to supporting the military effort. The potteries produced enormous quantities of dinnerware similar to these plates and watchman's mug which were made by Taylor Smith & Taylor.
In addition to devoting a large piece of their production to the war effort, the potteries (and most industries in the country) were faced with raw material and labor shortages. To compensate, the potteries reduced and simplified their lines. For example, TST's popular Lu-Ray Pastels line consisted of 51 pieces prior to the war, but only 29 pieces by the end of the war. And even those 29 pieces were not always available.