"Sometimes it seems as though the whole point of the Japanese writing system is to keep non-Japanese people from understanding what the hell is going on." — Dave Barry
This one looks like it's a big deal, but given its title it's difficult to find more information. The best I can determine is that it's set during the Chinese Communist takeover of the Xinjiang Uyghur region, sometime between 1949 and 1955.
What! If the poster considered them private enough to not want them posted widely, then they shouldn't have posted them at all!! Anyway, given that info, I'll refrain from posting pics or links to the pics. Sounds like they shouldn't have even made it to 2ch in the first place.
They're on H!O. And having seen them… yeah, no, they don't belong here. Personal photos taken in a women's restroom with other people (students! minors!) who are of no interest to H!P fandom.
In fact, posting photos taken in a public restroom might be a crime, depending on the circumstances and jurisdiction. Ask Dani Mathers.