From Special Operations Group, presented by "Military Insignia 3D" collection by Serge Averbuk, 

Officer Fleet Marine Force - All Metal Sign

We hand make all of our custom metal shapes in the USA using heavy gauge american steel and a process known as sublimation, where the image is baked into a powder coating for a durable and long lasting finish. This custom metal shape is drilled and riveted for easy hanging.

The United States Fleet Marine Forces (FMF) are combined general- and special-purpose forces within the United States Department of the Navy that perform offensive amphibious or expeditionary warfare and defensive maritime employment. The Fleet Marine Forces provide the National Command Authority (NCA) with a responsive force that can conduct operations in any spectrum of conflict around the globe.