0/PDMCreative Commons Public Domain Mark 1.0falsefalse If not a self portrait: English Dr. Hans Bernhard Schwerin, M.D. (1878-1945) during World War I circa 1915...
org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse English Hans Bernhard Schwerin and friend during World War I circa 1915...