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A male professor on the university campus, holding documents and looking very frustrated.
Ph.D. doing research with Raphael's School of Athens in background.
Vintage photo of an older man. Photo from 1975. USSR, Ukrainian SSR. Chasov Yar.
Black and White image taken in the 50s of a young man looking at the camera
A closeup shot of Ulysses S. Grant portrait over the blue surface
Cliche of an old scientist. Ironically nostalgic image of the scientist who sits with his microscope in smoke and fumes from his experiments
Photocopy of old photograph
Evert Taube portrait from fifty Swedish crowns banknotes
A male professor on the university campus, man welcoming and offering handshake, look at the camera with a smile
Louisville, KY, USA, Sept. 15, 2023: An original casting of Auguste Rodin's The Thinker sits in front of Grawemeyer Hall at the University of Louisville's main Belknap Campus.
antique photograph of man in suit and ascot
Vintage headshot portrait of a young smiling hispanic man looking at the camera
Benjamin Franklin with glasses
Facial Features Pattern Design on Banknote
Conceptual series
Portrait of an old thoughtful man in the dark. Neo-Pictoralism.
Male professor at university campus, he is studying and calling on mobile phone
Chief Justice John Marshall is a bronze sculpture of John Marshall by American sculptor William Wetmore Story.
Young man in the seventies
Cambridge, MA, USA - June 29, 2022: A visitor to the Harvard Yard, the oldest part of the Harvard University campus in Cambridge, Massachusetts, touches the foot of the John Harvard statue.
1930s 1940s 1950s Studio shot of a young elegant suit dressed italian man
details of the American fifty dollar banknote, a close-up of a part of a banknote with a face value of 50 US dollars
Antique portrait of famous men: Mark Twain
Double exposure of portrait of U.S. presidents Andrew Jackson and Alexander Hamilton
Male professor at university campus, he is studying and calling on mobile phone
An impressive classical building, at the alma mater of President Obama.  The name of the statue is Alma Mater (nurturing mother), created in 1903 by noted artist Daniel Chester French.
Portrait of a teenage boy. Vintage photograph ca. 1928.
Official portrait of historical governor from the golden age. Sitting in chair. Studio shot against dark wall.
Black and White image taken in the 60s of a young man looking at the camera
Free Images: "bestof:Tom Regan (cropped).jpg en Tom Regan professor emeritus of philosophy at en North Carolina State University en wikipedia Kelly http //tools wikimedia de/..."
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