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Peter the Dog
Taken with my first camera, a Ross Ensign using glass plates. I was using it in my teens until about 1970, as long as the stock of plates lasted.
My father bought it when when he was a young man, and it was old then, but good. It was a cube of about 8" side covered in brown leather, with a frame rate of about 0.01 fps
It had a focal plane shutter with a max speed of 1/1000 sec, amazingly (but not accurate, we found). I think it was a half-size version of that used by Frank Hurley on Shackleton's Antarctic trip of 1914. IDK what happened to it, but I believe my Mother sold it (together with my late father's Rolleiflex) to a door-to-door calling
scammer antiques dealer for a fiver the lot
Second picture shows the 3.5" x 2.5" plate alongside a 35mm slide holder.
Plate copied with K-1, M100mm macro, reversed in PP.