Wavy said:
While organizing my vertical gear - I found an old Chounard standard gate carabiner - (somewhat weakened perhaps) - with the initials EDF deeply stamped into it.
The most famous initials EDF I can think of stand for Électricité de France, the French electrical utility. They drove a tunnel into the Salle de la Verna in the famous Réseau de la Pierre Saint-Martin in the late 1950's, which provided easy access to the lower reaches of the cave. Since Chouinard is of French heritage, maybe that was used as a brand name or other designator for a line of vertical gear. Do those initials look like the manufacturer put them there, or like they were added later? Mark Minton