Item 1

https://backpack.tf/item/2800955285

Sale #1

Only one key traces when using IDs, incomplete given that counting keys on buyer's side lead to the same thing-

Seller: https://backpack.tf/profiles/76561198395846608#!/compare/1691712000/1692489600

Buyer: https://backpack.tf/profiles/76561198051159272#!/compare/1692057600/1692403200

Sale #2

Transferred to a storage bot?-

Seller: https://backpack.tf/profiles/76561198051159272#!/compare/1692835200/1693353600

Buyer: https://backpack.tf/profiles/76561198216470665#!/compare/1692748800/1692921600

Sale #3

Untraceable? Seems like it was an auction that didn't sell however-

Seller: https://backpack.tf/profiles/76561198216470665#!/compare/1692921600/1694908800

Buyer: https://backpack.tf/profiles/76561198240599376#!/compare/1691539200/1693785600

Auction: https://scrap.tf/auctions/STC7O2

Sale #4

Sold for an Electrostatic Medic's Mountain Cap (30 keys) + 20 keys (keys in buyer's trace) = 50 keys-

Seller: https://backpack.tf/profiles/76561198240599376#!/compare/1696896000/1697068800

Buyer: https://backpack.tf/profiles/76561198022112537#!/compare/1696809600/1697068800

Only sale @ 50

Taking 50 flat here