Climbing Ice Ax with "Member '58 Expedition K-2 - Nanda Devi -"" written on the wooden (looks like oak) handle.

I believe K-2 and Nanda Devi are separate mountains. I tried looking-up 1958 K-2 Nanda Devi expedition on the web without much success.

This was my father's, it was given to him by a friend of his named "Pete."

Nanda Devi

Nanda Devi is the second-highest mountain in India, after Kangchenjunga, and the highest located entirely within the country (Kangchenjunga is on the border of India and Nepal). It is the 23rd-highest peak in the world.

Nanda Devi was considered the highest mountain in the world before computations in 1808 proved Dhaulagiri to be higher. It was also the highest mountain in India until 1975, when Sikkim, an independent kingdom until 1948 and a protectorate of India thereafter, became a part of the Republic of India. It is located in Chamoli Garhwal district of Uttarakhand, between the Rishiganga valley on the west and the Goriganga valley on the east.

The peak, whose name means "Bliss-Giving Goddess", is regarded as the patron goddess of the Garhwal and Kumaon Himalayas. In acknowledgment of its religious significance and for the protection of its fragile ecosystem, the Government of India declared the peak as well as the circle of high mountains surrounding it—the Nanda Devi sanctuary—off-limits to both locals and climbers in 1983. The surrounding Nanda Devi National Park was declared a UNESCO World Heritage Site in 1988.

K-2

K-2, at 8,611 metres (28,251 ft) above sea level, is the second-highest mountain on Earth, after Mount Everest (at 8,849 metres (29,032 ft)). It lies in the Karakoram range, partially in the Gilgit-Baltistan region of Pakistan-administered Kashmir and partially in a China-administered territory of the Kashmir region included in the Taxkorgan Tajik Autonomous County of Xinjiang.

K-2 also became popularly known as the Savage Mountain after George Bell—a climber on the 1953 American expedition—told reporters, "It's a savage mountain that tries to kill you." Of the five highest mountains in the world, K-2 is the deadliest; approximately one person dies on the mountain for every four who reach the summit. Also occasionally known as Mount Godwin-Austen, other nicknames for K-2 are The King of Mountains and The Mountaineers' Mountain, as well as The Mountain of Mountains after prominent Italian climber Reinhold Messner titled his book about K-2 the same.