Real Photo Postcards (RPPC) are pains and joys in collecting early postcards, at least from my perspective. On the good side: they show “real” people and scenes as their name indicates. Many are posed (hence the use of quotes above) but they’re also often intended to be shared between families, friends, and acquaintances, particularly RPPC of people. Those may represent intricate networks of connections. Frustratingly, such cards also frequently lack sufficient information to tease out the networks. My collection contains more RPPC than I like with nothing written on the front or back. Whomever gathered the cards and placed them in albums knew the subject and/or meaning and didn’t need…