Caption: The laboratory of Ernest Rutherford (1871--1937) in the Cavendish Laboratory, Cambridge University, 1926. Yours truly thinks this may be only part of Rutherford's work space since in 1926 he was director of the Cavendish Laboratory (see Wikipedia: Ernest Rutherford: Cavendish Professor 1919--1937).
Rutherford was the lead discoverer of the atomic nucleus in 1910 (see Wikipedia: Nuclear Physics: Rutherford's team discovers the nucleus), and so is the "father" of nuclear physics (see Wikipedia: Ernest Rutherford (1871--1937): the Father of Nuclear Physics).
As the image suggests, those were the good old days in the early 20th century when a person with a few hundred dollars per year in funding could make fundamental discoveries---NOT like now. Actually, this laboratory looks pretty darn dangerous with chaotic electrical wiring.
© Anonymous photographer,
(uploaded to Wikipedia
by John Cummings User:Mrjohncummings,
CC BY-SA 2.0---but
I suspect this image is really public domain.
Image link: Wikipedia: File:Sir Ernest Rutherfords laboratory, early 20th century. (9660575343).jpg.
Local file: local link: ernest_rutherford_lab.html.
File: Atomic Nuclear file: ernest_rutherford_lab.html.