https://backpack.tf/profiles/76561198080841147#!/compare/1497916800/1498003200

https://backpack.tf/profiles/76561198078057495#!/compare/1497916800/1498003200

Maybe better to use on boxcar

https://backpack.tf/profiles/76561198066520025#!/compare/1497916800/1498003200

Molten Hoodie (27) + <0.5 key = 27

https://backpack.tf/profiles/76561198158197118#!/compare/1498262400/1498348800

https://backpack.tf/profiles/76561198066520025#!/compare/1498003200/1498348800

With ~1 key for Surge Whoopee (29) = 28 keys

https://backpack.tf/profiles/76561198158197118#!/compare/1498348800/1498435200

https://backpack.tf/profiles/76561198002492237#!/compare/1498348800/1498435200

Better use on helmet

https://backpack.tf/profiles/76561198092700900#!/compare/1497916800/1498435200

Hearth Fro + 2 keys = 31 keys

https://backpack.tf/profiles/76561198092700900#!/compare/1501459200/1501891200

Hearth Trilby (30)

https://backpack.tf/profiles/76561198129088942#!/compare/1502150400/1502236800

Duped Hearth Safe'n'Sound = not using

https://backpack.tf/profiles/76561198035959915#!/compare/1500422400/1500508800

?

https://backpack.tf/profiles/76561198045883624#!/compare/1499472000/1499644800

?

Btw, did this guy just bought like 25 items on mann co store ? [*]

https://backpack.tf/profiles/76561198090460161#!/compare/1500422400/1500508800

Looks like bulk

Summary

Sales @27, 28, 30, 31

Seller @25, 30 on outpost

And not sure, but here:

http://www.tf2outpost.com/trade/29319586

"04/08/17 - Some prices have been further discounted"

If that means that he's selling it for 25 for 20 days, that would be fair to put 25 in the range

27-31 for now