Horský gigant K2 zůstával lidmi dlouho nepokořen. Poprvé na jeho vrcholu stanuli dva členové italské expedice, Achille Compagnoni a Lino Lacedelli. By Uncredited but provided to Conefrey by Centro Documentazione Museo Nationale della Montagna. - Conefrey, Mick (2015). The Ghosts of K2: the Epic Saga of the First Ascent. between pages 158 and 159.London: Oneworld. ISBN 978-1-78074-595-4, Public Domain