Its a 5-15.
Since you can't tell from the photo, the
wire is from one of those cheap 16
gauge extension zip cords with a
tri tap on the end, which for some reason the builder split and then wrapped in
gaff tape. There IS an
identified neutral, one
wire is ribbed. Following the wires, the hot and
neutral are crossed.
The proper
strain relief in the sea of misery is the part I like most.
I'm thinking of mounting it on a plaque as a "you gotta be kidding me" award.