I have a technical question for some of my fellow USMC collectors out there. I am putting together a reenacting impression of the U.S. Marine encampment at Guantanamo Bay, Cuba during the Spanish American War or in the years shortly after. I have seen an interesting historical Marine photo showing an officer sitting in front of his tent on a camp chair with two flags, one on either side of the entrance of his tent. I don't recall if it was Col. Huntington or not but it was taken at Guantanamo. One flag is the Stars and Stripes, while the other appears to be a unit flag resembling the Civil War type regimental colors, nothing with an EGA. It appears to have an eagle in the center, wings spread, clutching something in it's claws, with a ribbon above and below it, apparently with a unit name or designation on each one. Anyone have a clue as to what this flag might have been or any other examples of Span Am era USMC unit flags?

Here is the photo, any thoughts? It's from a book regarding the service history of the Marine Corp.

is it clutching an anchor? I remember reading that Civil War era and for awhile after, the Marine Corps tended not to incorporate the globe into the emblem that often, even though the EGA was designed in 1868

Note darkness of the red stripe on the US flag compared to the trouser stripe. Obviously trouser stripe is either light blue or, more likely, yellow, so the man in the photo is neither USMC nor Artillery. Also, the lightness of the regimental color is more likely yellow, indicating cavalry. Tall boots add to that assumption.