10 months

https://backpack.tf/item/6888523260

Sale #1:

https://backpack.tf/profiles/76561198106176871#!/compare/1722038400/1722211200 ~ no mathces

https://backpack.tf/profiles/76561198157315119#!/compare/1722038400/1722470400

Sale #2:

https://backpack.tf/profiles/76561199085116273#!/compare/1721347200/1721433600 ~ 2 ref matches

https://backpack.tf/profiles/76561198106176871#!/compare/1721433600/1721520000 ~ ?

Sale #3:

https://backpack.tf/profiles/76561198071415643#!/compare/1721088000/1721174400 ~ this would be under buyers (PE hawaiian is 56)

https://backpack.tf/profiles/76561199085116273#!/compare/1721001600/1721088000

https://backpack.tf/item/6743743605

Sale #4:

https://backpack.tf/profiles/76561198188093413#!/compare/1715904000/1715990400 ~ 45 keys pure + Disco Beat Down Pampered Pyro + Dead Presidents Prince Tavish's Crown + Selfless Sensation Taunt: Shanty Shipmate

https://backpack.tf/profiles/76561198107550440#!/compare/1715904000/1715990400

No mini's on the Selfless Sensation Taunt: Shanty Shipmate

Sale #5:

https://backpack.tf/profiles/76561198042711548#!/compare/1718755200/1718841600 ~ added sleeper 3.24, huntsman 1.05, wrench 1.77, ubersaw 40 ref, powerjack 1.25, dragon fury 2, wanga 2.12, nine iron 1.56 + 3 keys = 17 keys (rounded)

https://backpack.tf/profiles/76561198859721638#!/compare/1718755200/1718841600 ~ for a Burning Flames El Fiestibrero

Mini fiestibrero:

https://backpack.tf/profiles/76561198188093413#!/compare/1721520000/1721606400 ~ resold for 50 keys + a Pro ks Aussie FaN (23.45)

= 73.45 - 17 = 56.45

Below buyers

Sale #6:

https://marketplace.tf/items/tf2/30977;5;u9 ~ July 14 2024 $167.99 / 1.69 = 99.4 keys