Ettore Colla: Opere, 1950-1968 (Italian Edition) - Amazon.com Music
Ettore Colla - 8 Artworks, Bio & Shows on Artsy
Repetto Gallery - Ettore Colla Untitled 1949-1956 Iron sculpture with red anti-rust paint 77 cm height “...Of this only have I always taken care, that my work should not escape from a