The M&B Headwear Co. Army Shade 107 Sun Hat in Olive Green, size 7 1/8, is an original period item from the Vietnam War era. This collectible piece of militaria embodies the theme of military history, specifically associated with the conflict in Vietnam from 1961 to 1975. With its authentic design and originality, this sun hat serves as a tangible piece of history that reflects the era of the Vietnam War and military apparel.