Sale 1:

Sold for 3 keys

https://backpack.tf/profiles/76561198362305972#!/compare/1721952000/1722124800

https://backpack.tf/profiles/76561198022640253#!/compare/1722124800/1722211200

https://backpack.tf/item/11083623550

Keys went towards the Godlike Square Dance before scanned in their backpack.

= 3 keys

Sale 2:

Sold for 2 keys + 17 ref (~0.25 at the time)

https://backpack.tf/profiles/76561198850274253#!/compare/1727568000/1727654400

https://backpack.tf/profiles/76561198353865610#!/compare/1727568000/1727654400

https://backpack.tf/item/14531792969 - every trade beyond this point appears to be gambling-related or otherwise unusable

= 2.25 keys

Other Sales:

#1

https://backpack.tf/profiles/76561199134115559#!/compare/1723161600/1727654400

https://backpack.tf/profiles/76561198850274253#!/compare/1726185600/1726272000

https://backpack.tf/item/14531792969

Untraceable

#2

https://backpack.tf/profiles/76561198137545628#!/compare/1723593600/1723852800

https://backpack.tf/profiles/76561198135388328#!/compare/1723766400/1723852800

https://backpack.tf/item/11272914422

Bulk to scrap.tf, seems like

#3

https://backpack.tf/profiles/76561198135388328#!/compare/1723766400/1723852800

https://backpack.tf/profiles/76561199747450728#!/compare/1723680000/1723852800

https://backpack.tf/item/11272914422

Untraceable

#4

https://backpack.tf/profiles/76561198841365001#!/compare/1724630400/1724716800

https://backpack.tf/profiles/76561198220052159#!/compare/1724630400/1724716800

https://backpack.tf/item/11086375423

https://backpack.tf/item/10765184659

Untraceable/Bulk

#5

https://backpack.tf/profiles/76561198220052159#!/compare/1724630400/1724716800

https://backpack.tf/profiles/76561199059698603#!/compare/1724630400/1724716800

https://backpack.tf/item/11086375423

https://backpack.tf/item/10765184659

Untraceable/Bulk

#6

https://backpack.tf/profiles/76561199110809353#!/compare/1725062400/1725148800

https://backpack.tf/profiles/76561199499579920#!/compare/1724716800/1726790400

https://backpack.tf/item/11086375423

Untraceable

#7

https://backpack.tf/profiles/76561199085116273#!/compare/1728432000/1728518400

https://backpack.tf/profiles/76561199061118436#!/compare/1727308800/1728864000

https://backpack.tf/item/10765184659

Untraceable

#8

https://backpack.tf/profiles/76561198379883980#!/compare/1726617600/1726704000

https://backpack.tf/profiles/76561198090310123#!/compare/1726704000/1726790400

https://backpack.tf/item/10746061680

Untraceable

#9

https://backpack.tf/profiles/76561198090310123#!/compare/1726790400/1726876800

https://backpack.tf/profiles/76561199564942025#!/compare/1726790400/1726876800

https://backpack.tf/item/10746061680

Untraceable, some metal matches. Was most likely 2 keys and the metal there.

#10

https://backpack.tf/profiles/76561199564942025#!/compare/1726963200/1727049600

https://backpack.tf/profiles/76561198035562422#!/compare/1726704000/1727049600

https://backpack.tf/item/10746061680

Untraceable, too many keys match on the buyer’s end, conflicting with many taunts they got.

Sellers:

https://i.imgur.com/GCqff1o.png

https://backpack.tf/item/11272914422 - ~2.45 keys

https://backpack.tf/item/11920166137 - ~2.5 keys

https://backpack.tf/item/12073403945 - “3.5 keys”

Sales at:

2.25

3

The sale at 3 is pretty old, and there are cheaper sellers. Excluding 3.

Taking 2.25 flat.