For some reason i suggested 39 as the low-end instead of 38.

Thou shalt price the unpriced.

Sale 1

Sold for a Power Surge YWN (mini at 38)

http://backpack.tf/profiles/76561198101610113#!/compare/1467936000/1468022400

http://www.tf2outpost.com/trade/28314740 ----- No B/O

Mini for the YWN: http://backpack.tf/suggestion/578a6e068667477b6347afe6

=======> 38 keys

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Sale 2

Sold for a Puzzle Death Racer's Helmet (mini at 46) + 1 key

http://backpack.tf/profiles/76561198118382818#!/compare/1467417600/1467676800

http://www.tf2outpost.com/trade/28157779 ----- B/O was 45 keys

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Mini for the Racer's

Everything this hat sells for is either outdated or duped. It sold for a clean Hearts Whoopee Cap here:

http://backpack.tf/profiles/76561198183617811#!/compare/1467676800/1467849600

And the Whoopee sold for a Codex Phononaut (50) here:

http://backpack.tf/profiles/76561198068783246#!/compare/1468108800/1468195200

There is a clean Whoopee being sold for 46 keys ( http://imgur.com/AXvJO3C , http://backpack.tf/item/402314596 ), so capping at 46.

=======> 46 keys

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=======> 46 + 1 = Capped at 45 keys

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Sellers

- http://imgur.com/YglxNW5 ----- 45 keys.

Summary

- Sales for 38 and 45.

Going with 38-45 keys. Criticism appreciated!