Rubber-Skin, Blue Men, Human Slates

"India Rubber Skin" men (and some women), generally suffered from Ehlers–Danlos Syndrome, an inherited connective tissue disorder that allows the skin to be stretched in different directions. EDS is caused by a defect in the structure, production, or processing of collagen in the skin, and produces dramatic results in those that suffer from the affliction.

Fickling, William Z. "The Human Slate" [blk 0-366]
Haig, "Elastic Skin Man" [ajax101]
Knotty Man, The
Lake, Etta, "Elastic Skin Girl"
Loos, Arthur
Morris, James (also James Maurice & William Maurice) "Elastic Skin Man" [d][e]
Nels Nelson [e]
Roland, F.C. "India Rubber Man"
Rubber Neck Harry [ajax101]
Rubber Nelson
Spanner, Peter "Rubber-Skin" [mm123, ss15]
Schmidt, Agnes C. "Rubber Skinned Woman"