Dimensions: 5 5/8 " x 3 78"
Esquire pattern
Date code: Backstamp suggests circa 1930s but is somewhat muddied by the addition of the distributor's name, Ideal Rest. Sup. Co. (Ideal Restaurant Supply Co.) and N.Y.
Lid manufacturer: Utilities Specialties
Hole for spoon: yes
The ad is from a 1917 newspaper advertising Ideal Restaurant Supply Co.