Greetings, With regard to your photograph, it probably was taken by A.B. Paine. Paine was an excellent portrait photographer, and I know that he worked with a 5x7 stereo camera, because I have seen (and own) images contact-printed from the negatives. He also worked with non-stereoscopic cameras, but I have seen no commercial prints made from them. The view that you describe sounds like the classic stereoview of SLC that was sold by Underwood and Underwood (U&U), a commercial publisher of stereoscopic and other photographs. There also were stereoviews of SLC sold by White & White and the Keytone View Company in ~ 1905 - 1910, and therafter. One wonders if there were some kind of royalty paid to SLC from the use of his image, although given the times, I would guess that there was not. U&U was then only beginning to get into the newspaper file-photo supplying business. They covered the world and furnished newspaper-subscribers with 5x7 and 8x10 real photos of people and places that were filed and retrieved when the image would be useful for an article. Typically there is an inked-stamp on the reverse saying: "Please credit Underwood and Underwood...". Their photos became increasingly more common throughout the 20s and 30s. I have seen (both copy and original contact-print) photos taken in the 'teens that clearly were made for 1930's press releases. It is unusal to see commercial real-photos of SLC from this era in other than the stereoview-format. The Gallagher-publisher alongside the U&U copyright is a curiosity; I've not seen the like. One cannot be sure of when the print were made; one clue could be the type of frame in which the image is encased. I probably could help date the time-of-printing by the kind of paper used, and how the finish appears. Perhaps there is a dealer in vintage photography in your environs who could help more directly than I, who resideth in faraway Cincinnati. It is an interesting image, and if you wish, I'ld be glad to correspond privately and help you try to date when it could have been made. If it were a copy-print, it should be easy to tell, because they are never as sharp. If it were an original image made around the time of the original negative, it could be valuable. Hope that this helps, Brandt Rowles