History 1: https://backpack.tf/item/8212908955

Untraceable:

https://backpack.tf/profiles/76561197992703391#!/compare/1606262400/1606348800

https://backpack.tf/profiles/76561198348989580#!/compare/1608076800/1609891200

Untraceable:

https://backpack.tf/profiles/76561198348989580#!/compare/1609891200/1611705600

https://backpack.tf/profiles/76561198181015431#!/compare/1605916800/1610064000

History 2: https://backpack.tf/item/8178844296

Marketplace.tf sale

History 3: https://backpack.tf/item/4794461259

Bulk for the Stormy 13th Hour Conquistador:

https://backpack.tf/profiles/76561198838788284#!/compare/1613260800/1613347200

https://backpack.tf/profiles/76561198142129821#!/compare/1613260800/1613347200

It was then quicksold to Erik then he listed it on marketplace.tf https://imgur.com/xW9lTvv (credit to Erik for giving me the info)

Marketplace.tf sales: https://marketplace.tf/items/tf2/30618;5;u3027

November 30: $12.95/1.76=7.36 ~7.5 keys

December 4: $18/1.76=10.23 ~10 keys

December 31: $24.99/2.14=11.68 ~12 keys

Unsolds: 2 on marketplace.tf at $24.99/2.09=11.96 keys

Sales at 7.5, 10 and 12

10-12 seems like the most common trading point with 7.5 being a lower outlier and also the oldest sale, Gonna stick with 10-12 for now

Oof, 2 sellers at 9 appeared, maybe 10-12 was the outlier after all :/. Will wait for a mod comment before resuggesting