HISTORY OF PHOTOGRAPHY Fotospira (Fallen type); device to produce magnesium flashes: the "illuminating powder" was blown over the flame of the candle by activating a rubber pear; it was possible to obtain both single and rapid flashes. Illustration from a photography manual written by Count Luigi Gioppi of T黵kheim (1858 - 1930); doctor of law; knight of the Crown of Italy; co-founder and director of the magazine "Il Dilettante di Fotografia - Illustrated popular newspaper"; authoritative compiler of manuals technical informative of photography and essays from other disciplines; as well as holder of public administrative positions. The work is dedicated to the Prince of Naples; future King Vittorio Emanuele III; illustrious "Dilettante di Fotografia". Ulrico Hoepli Edition; Publisher-Bookshop of Real Casa; Milan 1891