Superb early vintage photo from the original set G-2, mailed in glassine sleeve. George O'Mara (aka "Adonis") was one of Colt Studio's most popular models (for obvious reasons).
5" x 7" silver gelatin print is in pristine condition.
It bears no studio stamp. The stamp, found on only one photo from the set of eight, has the address: Box 187, Village Station, New York City, 10014. Scan is included for information only.