finally, in 1954, an italian expedition made it to the summit. it was lead by geologist ardito desio. the two climbers to reach the top were lino lacedelli and achille compagnoni, at 6pm on 31 july 1954. one member of the expedition (colonel muhammad ata-ullah of pakistan) had been part of the 1953 american attempt as well. other members were scientists, a doctor, a photographer, and others. mario puchoz died in the attempt. two other members had to be hospitalized and one had to have his toes amputated due to frostbite.