Sale #1:

http://backpack.tf/profiles/76561198159149142#!/compare/1478822400/1478995200

Sold for a Stormy Storm Pure Tin Capotain (11 keys)

11 keys

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Sale #2:

http://backpack.tf/profiles/76561198203504480#!/compare/1478736000/1478822400

Sold for 7 or 8 keys

Outlier

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Sale #3:

http://backpack.tf/profiles/76561198203504480#!/compare/1477267200/1478304000

Sold for a Strange Professional Killstreak Australium Frontier Justice (11 keys)

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Minis:

Stormy Storm Pure Tin Capotain: http://i.imgur.com/F6MgCD7.png

Seller at 11 keys in classifieds

11 keys

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Strange Professional Killstreak Australium Frontier Justice: http://steamcommunity.com/market/listings/440/Strange%20Professional%20Killstreak%20Australium%20Frontier%20Justice

Sales on November 4 - 5 average at about $28.74, and keys at around $2.35. After valve taxes, the range is 10.5 - 12 keys, which averages to around 11 keys.

11 keys