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For now I am calling these type pitons, Open-Eye pitons. These are pitons from the early 1900s and into the 1930s

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American Alpine Club - Harvey T. Carter

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Lizard Head piton - props John Middendorf

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Unknown ice piton shown on ebay 3/2022

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American Alpine Club museum

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Photo from 2010

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Dwight Lavender pitons - American Alpine Club museum

Dwight Lavender piton

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Rope catch anchor
Chamonix, France
Donated by: Todd Swain

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Yugoslav Army piton
circa 1980s (?)

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Yugoslav Army piton
Shown on ebay 2/2024 by YU Antiques
circa ........ ?

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