History of Armor Archivist

Armor Archivist is a triumph for unlocking armor entries in your Collections by acquiring pieces of armor for the first time (it was added in Season 12).

How to complete

• Any piece of armor you receive for the first time automatically unlocks in Collections; there is nothing to turn in.
• Progress comes from getting new armor: Raid, Dungeon and seasonal activity drops, Vanguard and Crucible rewards, and vendor purchases all count. Fastest is to chase armor sets you have never owned.
• Armor you have already unlocked will not add progress, and class-specific pieces are tracked per class tab (Titan, Hunter, Warlock).

Tips

• Use Collections to see missing entries, and check Badges by tab. Note that Legendary armor with random rolls cannot be reacquired from Collections, so you need to earn it from drops.

I could not open the triumph's own database page (light.gg returned 403), so the exact number of entries needed is not stated here; check the in-game objective.