Here is another CW photo that just came to light.
Actually, it was taken in March of 1993 at the Picacho Peak battlefield. I had just come off the field. It was pretty warm and dusty, so I was in good character. Bob Gabriel took the wet plate albumen photo using a pre-war rosewood 8X10 camera. The wagon in the background is his 1870s photographer's wagon (also original). Sorry, no Spencers (that's a Parker Snow contract '61), but it's one of my favorite shots.