a lot of time has passed, I'm a lot more experienced at this thing, let's try this again.

12 Keys

https://backpack.tf/item/16688914146

https://backpack.tf/profiles/76561198069802516#!/compare/1778803200/1778889600

https://backpack.tf/profiles/76561198453530349#!/compare/1778803200/1778889600

13 Keys

https://backpack.tf/item/14540906369

https://backpack.tf/profiles/76561198311498888#!/compare/1771545600/1771632000

https://backpack.tf/profiles/76561198133538821#!/compare/1771372800/1771632000

bulk w/ Severed Serration Twisted Topper, omitting

https://backpack.tf/profiles/76561198133538821#!/compare/1771977600/1772323200

https://backpack.tf/profiles/76561199100906514#!/compare/1772150400/1772323200

15 keys - higher than current sellers, omitting

https://backpack.tf/profiles/76561198311498888#!/compare/1776470400/1776556800

https://backpack.tf/profiles/76561198027315255#!/compare/1776211200/1776816000

Untrace:

https://backpack.tf/item/16932178636 - trade could possibly be so fresh there isn't a recorded history of the recent trade

https://backpack.tf/item/14665535149

13 Keys 43 Ref for sale on STN

https://stntrading.eu/item/tf2/Unusual+Cloud+9+Head+Hedge