You may be noticing shadowing along the right edges of the dog’s image.
This is caused by a flash attachment on the left side of the camera, as much as a foot off-set from the lens.
I always had that problem up until my last and favorite film camera, which used a top-mounted flash and caused shadowing beneath things.
A past girlfriend had the first “ring flash” I’d ever seen on her film camera, and no such shadows in her pics.
My best camera now, a 16 MP Pentax digital, has less of a problem because the built-in flash is very close to the lens.
Thanks for the explanation. I remember the days of the Brownie camera with the flash attachment. I’m assuming this was taken by a military photographer, with something better than a Kodak Brownie.