Obviously, this isn't a label! I'm hoping someone might know if the soldiers in this picture were wearing uniforms from the Spanish American War, WW1, or another time in our history. I'm really mostly interested in knowing the approximate time in history. I bought this years ago at a local pawn shop for a dollar and haven't had much luck online finding answers. I took the back off the frame and it looks like this was taken from a larger picture and wondered if it might have been a recruitment poster. Thanks to Rikki Gins and 26 Horses for their help!