1 year outdated.

Taking last 2 months.

Sold for 33 keys

https://backpack.tf/profiles/76561198153325445#!/compare/1591142400/1591401600

https://backpack.tf/profiles/76561198117301561#!/compare/1591315200/1591401600

Sold for 69.99 on April 28, 2020 (69.99/1.82 = 38.45 rounding to 38 keys)

Sold for 69.99 on May 3, 2020 (69.99/1.87 = 37.42 rounding to 37 keys)

Sold for 69.99 May 10, 2020 (69.99/1.9 = 36.83 rounding to 37 keys)

Sold for 69.99 on May 15, 2020 (69.99/1.91 = 36.64 rounding to 37 keys)

https://marketplace.tf/items/tf2/30623;5;u30

https://backpack.tf/item/4608232226

https://backpack.tf/item/4121015442

https://backpack.tf/item/7878879754

Untrace

https://backpack.tf/profiles/76561198438026899#!/compare/1587945600/1588032000

https://backpack.tf/profiles/76561197962753543#!/compare/1587772800/1588118400

It is likely this one is the first MP sale above.

Untrace

https://backpack.tf/profiles/76561197962753543#!/compare/1588464000/1588723200

https://backpack.tf/profiles/76561198850274253#!/compare/1588377600/1588464000

Untrace

https://backpack.tf/profiles/76561198850274253#!/compare/1589155200/1589241600

https://backpack.tf/profiles/76561198220604948#!/compare/1589155200/1589241600

Quicksold for 27 keys?

https://backpack.tf/profiles/76561198220604948#!/compare/1589241600/1589328000

https://backpack.tf/profiles/76561197989774972#!/compare/1589241600/1589846400

Untrace

https://backpack.tf/profiles/76561198337734785#!/compare/1588636800/1588723200

https://backpack.tf/profiles/76561198256998558#!/compare/1588723200/1588809600

Sold for atleast 4 keys

https://backpack.tf/profiles/76561198324846940#!/compare/1585958400/1587945600

https://backpack.tf/profiles/76561198282065071#!/compare/1587513600/1587772800

Sold for 31 keys

https://backpack.tf/profiles/76561198397618117#!/compare/1591315200/1591488000

https://backpack.tf/profiles/76561198311431152#!/compare/1591142400/1591315200

However, the seller here first purchased it off MPTF for 37~ keys, then resold for 31 in pure here.

Classifieds:

https://gyazo.com/d2be8d7e107236dacc496de41fba5db1

1 @ 31 keys

1 @ 33 keys

1 @ 37 keys

2 @ 37 keys

1 @ 38 keys

Excluding one of the 37 purchases, and the 31, as 37 was resold for 31.

Seller at 35 for 4 days. Going to exclude 38 due to that, but will include 37 as it's common here.

Taking a range of 33-37 keys here.