Rare stereoview on yellow mount featuring an officer getting ready to mount his horse, with other people, including a child, present and part of an artillery carriage visible behind the horse. Verso bears applied paper label crediting the view to E. & H. T. Anthony & Co. and titling the view "Camp Life." This title has been marked out with an ironed ink "X" and a pencil inscription above reads, "H. J. Williams / Col. 5th Va. Regt Stonewall Brigade." This is almost certainly an error, however, as the American Antiquarian Society holds a copy of this view including a written identification detailing that it shows "Lieut. Porter" preparing to mount his horse at camp near Relay House outside of Baltimore on 15 June 1861.

The view is part of a group of Anthony Camp Life stereos taken in the spring of 1861 near the Relay House and Thomas Viaduct, a crucial rail intersection just south of Baltimore. Other Camp Life views from this location at the American Antiquarian Society include detailed descriptions and identifications of various soldiers in the photos and identify all of them as members of the Boston Light Artillery.

(See BRADY, Keith. "The Boston Light Artillery at Relay, Maryland: More Treasures at the American Antiquarian Society." Battlefield Photographer: The Journal for the Center for Civil War Photography. Vol. XVI. Issue 1. April 2018).