This is a Marine Corps Badge and we must assume it was worn ONLY by those who had qualiied to a certain degree for amphibious warfare.

This is the last of the batch of Badges that we have to the United States Marine Corps.
"Quartermaster's Comment":-  I have to admit to NOT knowing very much about this last lot of insignia.......only to say that they are all very colourful.......or being American should that read colorful!!!!!........@ only R 39.......please enjoy.