Albumen photograph on boudoir mount depicting an adobe ruin identified in the negative as “Old Spanish Ruin at San Diego.” The image and mount format are consistent with late 19th century western views. No photographer’s imprint is visible on the mount or verso.

The structure appears as a long, low adobe building with heavily weathered walls, multiple arched openings, and areas of exposed stone and plaster loss. A partial wooden roof frame remains at center, supported by upright posts, while a large tree with drooping branches occupies the left foreground. Additional details include uneven ground with low vegetation, a small wooden outbuilding at far left, and irregular wall textures across the façade.

The caption “Old Spanish Ruin at San Diego” is written directly along the lower margin of the print. The verso is blank, with no additional markings or inscriptions visible. The mount shows a printed border framing the image, reinforcing its presentation as a western architectural view.