C.R.H (American, 19th century)
National Institutes of Health (American, 1887-)
M. Waddell (American, 19th/20th Century)
Anonymous
Anonymous
Eric Rohman (Swedish, 1891 - 1949)
National Institutes of Health (American, 1887-)
Adolphe Léon Willette (French, 1857 - 1926)
A.W.B. Lincoln (American, 19th/20th Century)
A.W.B. Lincoln (American, 19th/20th Century)
Drukarnia Józefa Fiszera (Polish, 18th/19th Century)
Edward Penfield (American, 1866 - 1925)
Burkhard Mangold (Swiss, 1873-1950)
Anonymous
Ron White (Canadian, 20th Century)
National Institutes of Health (American, 1887-)
Frank Hazenplug (American, 1873-1931)
Will Bradley (American, 1868 – 1962)
S. Flanchoin (French, 19th/20th century)
Gian Emilio Malerba (Italian, 1880-1926)
Roland Davies (Welsh, 1904-1993)
O.C Malcolm (American, 19th/20th century)
Anonymous
Winold Reiss (American, 1886-1953)
Anonymous
Will Owen (American, 1869-1957)
Arnold Nechansky (Austrian, 1888–1939)