Hams Across The Sea
from Radio Broadcast Magazine March 1924

  These amateur radio stations in France and America established two-way communication on 100 meters for the first time in radio history during the last months of 1923.
  Left: The neat counterpoise of 1MO operated at Hartford, Conn. by F. H. Schnell, traffic manager of the American Radio Relay League.
  Right: M. Leon Deloy of Nice France, and his receiving apparatus. Deloy was the first French amateur radio telegrapher to attain two way communication with American Amateurs.
  Center: Mr. Schnell and his 110 meter receiver.
  Lower left: The 110 meter transmitter at 1MO.
  Lower right: Receiving and broadcasting station at Haverford College, where signals from Leon Delon's amateur station at Nice France were brought in on a loud speaker.
  Below: The efficient tube transmitter at 8AB in Nice, France.

Schnell's QSL card from the same time frame. Right click to enlarge it.