Dome of Santa Maria del Fiore, Florence (telephotograph by Giorgio Roster, 1892). It was taken with a telephoto lens which was specially adapted by Roster himself

AMG, Carte e raccolta fotografica Roster, series 14: Telefotografie Roster I: Esposizione della Società fotografica italiana (Firenze 1892), Badia Fiorentina, Palazzo Vecchio e S. Maria del Fiore..., "Cupola del Duomo, A, B, Fig. 12", G. Roster (1 stampa, b/n, 14x11 cm, --/04/1892)