Кто-то уже пытался найти. Вот цитата из реддита: "Well, I cropped it and did a reverse image search and it's literally all about memes. But it's also posted on a bunch of pinterest pages with other pictures of World War 2. It appears to be from a soldier's personal collection in Germany's Bundesarchiv. No other information I could find. Maybe it was a prank between German soldiers or something, like hey Hans, Rudolf is pooping at the outhouse, let's pretend to bayonet him hahaha"