These are from where I work. I have no idea what to make of the first one. It looks like you could plug in a 1-15 or a 2-15 plug, and that the two are perpindicular to each other. Maybe it's some old 3-phase thing instead?
The other one is odd both for the outlet and the cover. There are several of these scattered about the building. The building was put up sometime in the 1920s, I think. None of these outlets are actually used. I'm not sure what to make of the outlet itself. Is the center hole a ground of some kind, or just a rivet to keep the front plate on? Also, what kind of plug would need T terminals on both sides?