CAMP LEJEUNE, N.C. — A half-eaten sandwich believed to be Chesty Puller's has Marine officials hailing it as an "important piece of Corps history," sources confirmed Friday.

The leftover sandwich from one of the most iconic Marines ever was discovered in a disused refrigerator on Thursday when an abandoned headquarters building was being cleaned prior to its renovation. The discovery — in what was once a break room for senior officers — was made in a building that was constructed in the 1940s on Camp Lejeune that had been abandoned since the early 1980s.

The salami-and-smoked-mozzarella on a wheat baguette with tomato and a bit of garlic mustard spread, wrapped in wax paper with “PULLER” scrawled on the outside in marker, was confirmed to be Chesty Puller’s by a forensics team attached to the Marines' 2nd Intelligence Battalion.