U.S.M.C. Drill Instructor Campaign Smokey.

The USMC Field Hat had a parallel history to the Army version and can be seen in photos of Marines in Nicaragua, Haiti, and China before World War II. As with the Army, official issue of the Campaign Hat was discontinued early in World War II, but it continued in use by Marine Corps marksmanship teams. In Marine terminology, it is a "Campaign Cover" or "Smokey", but definitely not a "hat".

Post-war, the Campaign Cover started to be issued to Marine drill instructors in 1956, as a symbol of their responsibility and authority. 

Displaying on the front a WWI pattern darkened bronze USMC EGA. 

No chin strap

Size: 7 1/4