SMC (Seattle Manufacturing Corporation) aluminum carabiner with screw gate and pulley. Maker's mark 'SMC' stamped on one side. Exact date of production unknown, but likely between the 1970s-1990s.
Is Part Of
American Alpine Club Library
“SMC Carabiner,” The Collections of the American Alpine Club Library, accessed September 27, 2023, https://library.americanalpineclub.org/items/show/10842.