I have a large collection of identified antique photos. My collection includes an album bought in Pittsburgh which I call the Buterbaugh/Smeltzer album. It has a carte-de-visite photo taken in Indiana, Indiana Co., Pa., which shows 2 young men and 2 young women. The only identification on the back of the photo is: S. M. Buterbaugh, J. [or P.?] L. Buterbaugh, and R. Eliott. Carte-de-visite photos (the size of calling cards) were popular from ca 1860s to early 1900s.