World War One. Daylight saving time in France, during the night of June 14-15, 1916. Pneumatic clock. Photograph published in the newspaper “Excelsior”, on June 14, 1916.
World War One. Daylight saving time in France, during the night of June 14-15, 1916. Pneumatic clock. Photograph published in the newspaper “Excelsior”, on June 14, 1916.
