I'll probably be selling and/or donating some old climbing gear. Some of this is quite old: pins from early 70s, steel carabiners from 60s, Friends from 70's, other biners about as old, although the lockers are newer, as are the ice screws. But I can't affirmatively date all this, so I'd assume it's all 20+ years old.
So I would assume none is safe for climbing (aside from the hammer). I'd tend to think the pins could still be good, but I dunno. What if someone wanted to use them for a replacement for something critical? are they still good for climbing?
And how do I go about selling some of this—just a notice that "not for climbing"? Even the cams might have some non climbing uses.
PS not a solicitation for selling this stuff. I will not do that through Reddit, etc.