Phone Suggestions are a Pain

https://backpack.tf/item/1366257214

Sale 1) Sold for 11 Keys

https://backpack.tf/profiles/76561198076020691#!/compare/1507420800/1507680000

Sale 2) Sold + ~4 Keys of Items for an Orbiting Fire Herald's Helm

https://backpack.tf/profiles/76561198100538734#!/compare/1507852800/1507939200 - Seller’s Backpack

https://backpack.tf/profiles/76561198216561389#!/compare/1507852800/1507939200 - Buyer's Backpack

http://www.tf2outpost.com/trade/29397133 - Capped by the Buyout of 13 Keys

Sale 3) Quicksold for 10 Keys + 5.22 Refined

https://backpack.tf/profiles/76561198146343034#!/compare/1509062400/1509148800

Sale 4) Sold for 11 Keys

https://backpack.tf/profiles/76561198077919444#!/compare/1510358400/1510444800 - Buyer's Backpack

https://backpack.tf/profiles/76561198349886701#!/compare/1510358400/1510444800 - Seller’s Backpack

The GE Elf was sold for 17 Keys, 11 of which went for the Glengarry.

https://backpack.tf/item/940048677

Sale 5) Sold for 6 Keys + ~5 Keys of Items + Earbuds (~2 Keys)

https://backpack.tf/profiles/76561198255903931#!/compare/1507161600/1507334400 - Seller's Backpack

https://backpack.tf/profiles/76561198383810198#!/compare/1507248000/1507334400 - Buyer’s Backpack

6 + 5 + 2 = 13 Keys

Sale 6) Sold for 10 Keys + ~1 Key of Refined

https://backpack.tf/profiles/76561198119634686#!/compare/1507852800/1507939200

10 + 1 = 11 Keys

Sale 7) Bulk sale for a Terror-Watt Deep Cover Operator

https://backpack.tf/profiles/76561198158879140#!/compare/1508112000/1508198400

https://backpack.tf/item/1161676128

Sale 8) Sold for 11 Keys and 4 Refined

https://backpack.tf/profiles/76561198119634686#!/compare/1505692800/1505779200 - Seller's Backpack

https://backpack.tf/profiles/76561198024342389#!/compare/1505692800/1505779200 - Buyer's Backpack

The Keys and Refined were used to buy the Dixieland you see in the Seller's backpack.

Rounds to 11 Keys

Sale 9) Quicksold for 10 Keys and 1 Refined

https://backpack.tf/profiles/76561198024342389#!/compare/1505692800/1505779200

Sale 10) Sold for a Dead Presidents Handyman's Handle (9 Keys) + 4 Keys

https://backpack.tf/profiles/76561198349886701#t6189966980 - Seller's Backpack

https://backpack.tf/profiles/76561198269389241#!/compare/1506643200/1506902400 - Buyer's Backpack

9 + 4 = 13 Keys

Handle Mini

https://imgur.com/2prcOyk - 2 Sellers at 9 Keys