(Dusting off very rusty memory cells here ... and this memory was part of what got my attention when I viewed the article)
When I was very young (maybe 8 or so) I remember visiting Tijuana on a trip to California and getting my photo taken on a horse (could have been a donkey, LOL) on a street corner. I was not paying that much attention to the camera, as I had not discovered photography yet, but I remember the camera was huge, boxy, on a stand or tripod, and it looked like the photographer developed or rinsed the print in a bucket.
Later when I got into photography I wondered what this was and I'm still not sure. The print was maybe a 4x5 B&W. It was sharp and clear. I remembered it only took a couple of minutes to get the print.
I'm wondering if it wasn't something like the camera pictured.