Credits to king

sold for 24 keys pure

https://backpack.tf/profiles/76561198056086416#!/compare/1525651200/1525737600

sold for o fire jeepcap (12.5), duped bubbling marauder (9.5), circling tf logo voodoo (18) and 0.75 key in items

https://backpack.tf/profiles/76561198377919903#!/compare/1525824000/1525910400

40.75, rounding to 41

mini for jeepcap

buyers are close to sellers, highest buyer is at 12.44, rounding to 12.5

https://imgur.com/a/SXhbIT9

mini for bubbling marauder

no recent sales for duped version, unsolds of clean version at 10.62 support the drop

taking highest buyer's price, 9.25, rounding to 9.5

https://imgur.com/a/SJ6yDG3

mini for tf voodoo

sold for 17 keys

https://backpack.tf/profiles/76561198136017741#!/compare/1525824000/1525910400

sold for 19 keys

https://backpack.tf/profiles/76561198056086416#!/compare/1522886400/1522972800

sold for 24 keys pure + refs, rounding to 24 keys

https://backpack.tf/profiles/76561198136017741#!/compare/1525478400/1525651200

mp.tf

https://marketplace.tf/items/30977;5;u29

sold for 84 and 60

keys are at 1.98 atm

84/1.98=42.42, rounding to 42

60/1.98=30.3

sold for duped tf honcho + 2 keys + 1 key in items

https://backpack.tf/profiles/76561198013735994#!/compare/1525910400/1526083200

mini for duped honcho

only 1 recent sale

sold for 25 keys pure

https://backpack.tf/profiles/76561198130359983#!/compare/1518393600/1518480000

https://backpack.tf/profiles/76561198135388328#!/compare/1518393600/1518480000

quicksell, buyers are countering

https://imgur.com/a/oROKgSe

other sales are unusable

taking buyer's price

31

sold for kaw robo helmet (15), mallard birdcage (19) with 12 refs in sweets

https://backpack.tf/profiles/76561198168625615#!/compare/1523664000/1523750400

34

mini for kaw helmet

sold for 15 keys

https://backpack.tf/profiles/76561198093124871#!/compare/1520726400/1521158400

mini for mallard ew hat

sold 18 keys pure + 1 key in items

https://backpack.tf/profiles/76561198302706987#!/compare/1523491200/1523577600

Sales we have:

19, 24, 41, 24, 42, 30, 28, 34

There are four marketplace sellers countering the high-end here, so excluding marketplace sales, 41 and 34 keys sales calling them high outliers

https://imgur.com/a/22CTnLr

More recent traceable sales:

https://marketplace.tf/items/30977;5;u29 ----- $38 (~19 keys) and $38.99 (~20 keys)

25 keys

https://backpack.tf/profiles/76561198305676157#!/compare/1531432800/1531519200

https://backpack.tf/profiles/76561198095589286#!/compare/1529020800/1531440000

https://bot.tf/stats/item?def=30977&q=5&ef=Stormy+Storm&craft=1&aus=0&ks=0

22 keys, then quicksold for ~17?

https://backpack.tf/profiles/76561198044540443#!/compare/1529193600/1529280000

Miami Headwarmer? Something else likely added with the Antarctic.

https://backpack.tf/profiles/76561198080179568#!/compare/1531612800/1531699200

https://backpack.tf/profiles/76561198187168478#!/compare/1531180800/1531699200

https://imgur.com/a/G1oeoGh ----- Relisted at 24 in classies:

24, 24,19, 25, 19, 20

Going with 19-25