Valdemar Poulsen
'Valdemar Poulsen' (1906). Artist/photographer: Unsigned . Provenance: "Scientific American". Type: Antique halftone photographic print.
Size: 1775px × 1836px
Photo credit: © Antiqua Print Gallery / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: 1906, 20th, antique, century, halftone, photographic, poulsen, print, twentieth, valdemar, vintage
