3 months outdated. Loads of sales within 2 months. So i excluded all those which requires mini suggestion and those sales that i can't identify. The sales under "Invalid sales"is there to show that there are trades with b/o at 15 and 16 keys.

Sale #1

http://www.tf2outpost.com/trade/21176867 b/o 15 keys

Sold for Tavish Degroot Experience Blizzardy Storm painted black(15.5 * 0.9 = ~14 keys)

Backpack of seller

http://backpack.tf/profiles/76561198089646780?time=1405062000 Before

http://backpack.tf/profiles/76561198089646780?time=1405202749 After

Backpack of buyer

http://backpack.tf/profiles/76561198058585774?time=1405062000 Before

http://backpack.tf/profiles/76561198058585774?time=1405234367 Afer

Total: ~14 keys

Sale #2

http://www.tf2outpost.com/trade/21188980 b/o 16 keys

Sold for Bot Dogger Bubbling(0.95 buds * 0.9 = ~0.86 buds) + 1 key + ~3.66 refs in sweets

Backpack of seller

http://backpack.tf/profiles/76561198058585774?time=1405234367 Before

http://backpack.tf/profiles/76561198058585774?time=1405234800 After

Backpack of buyer

http://backpack.tf/profiles/76561198056846470?time=1405234800 Before

http://backpack.tf/profiles/76561198056846470?time=1405341450 After

Total: ~18 keys. However, seller's b/o is 16 keys. Taking 16 keys as price

Sale #3

http://www.tf2outpost.com/trade/21280833 b/o 15 keys

Traded this + 4 keys for 1 bud pure

Backpack of seller

http://backpack.tf/profiles/76561198056846470?time=1405494000 Before

http://backpack.tf/profiles/76561198056846470?time=1405839600 After

Backpack of buyer

http://backpack.tf/profiles/76561198073746717?time=1405580400 Before

http://backpack.tf/profiles/76561198073746717?time=1405810364 After

Total: 15 keys

Sale #4

http://www.tf2outpost.com/trade/21361802 b/o 14 keys Took 4 days

Sold for 14 keys pure

Backpack of seller

http://backpack.tf/profiles/76561198073746717?time=1405753200 Before

http://backpack.tf/profiles/76561198073746717?time=1406012400 After

Backpack of buyer

http://backpack.tf/profiles/76561198061755956?time=1405926000 Before

http://backpack.tf/profiles/76561198061755956?time=1406082312 After

Total: 14 keys

Sale #5

http://www.tf2outpost.com/trade/21040127

Sold for Terror-Watt Copper's Hard Top(1 * 0.9 = 0.9 buds)

Backpack of seller

http://backpack.tf/profiles/76561198130596640?time=1404543600 Before

http://backpack.tf/profiles/76561198130596640?time=1404750008 After

Backpack of buyer

http://backpack.tf/profiles/76561198137178441?time=1404543600 Before

http://backpack.tf/profiles/76561198137178441?time=1404766334 After

Total: ~16 keys at the time of the sale

Invalid sales

Sale #6

http://www.tf2outpost.com/trade/20055575

Sold multiple hats for pure

Sale #7

http://www.tf2outpost.com/trade/20940667

Can't identify sale

Sale #8

http://www.tf2outpost.com/trade/20952810 b/o 17 keys

Sold for Big Elfin Deal Steaming(Outdated)

Sale #9

http://www.tf2outpost.com/trade/20971413 b/o 17 keys

Sold for Orbiting Planets Furious Fukaamigasa(Outdated)

Sale #10

http://www.tf2outpost.com/trade/21044603 b/o 16 keys

Can't identify sale

Sale #11

http://www.tf2outpost.com/trade/21047259 b/o 17 keys

Could only identify 11 refs in items

Sale #12

http://www.tf2outpost.com/trade/21442679 b/o 19 keys

Traded this + Your Worst Nightmare Terror Watt(Oudated) for Dead Presidents Horrific Headsplitter(Outdated)

Sale #13

http://www.tf2outpost.com/trade/21504867

Can't identify sale

Sale #14

http://www.tf2outpost.com/trade/21150409 b/o 1 buds

Traded this + ? for Gifted Flaming Lantern Shooter's Sola Topi

Sale #15

http://www.tf2outpost.com/trade/19245184

Can't identify sale

Sale #16

http://www.tf2outpost.com/trade/20741349 b/o 16 keys

Sold for Blizzardy Storm Bombing Run(Outdated)

Sale #17

http://www.tf2outpost.com/trade/21046746 b/o 15.5 keys

Can't identify sale

Sale #18

http://www.tf2outpost.com/trade/21085389

Traded this + Whirly Warrior Cloud (Updated) for Disco Beat Down Vintage Merryweather(Outdated)

Sale #19

http://www.tf2outpost.com/trade/21113195 b/o 17 keys

Sold for Terror-Watt Coupe D'isaster(Outdated)

Sale #20

http://www.tf2outpost.com/trade/21459249

Sold for Orbiting Fire Helmet WIthout a home (Outdated)

Sale #21

http://www.tf2outpost.com/trade/21472193 b/o 15 keys

Sold for Orbiting Planets Outdoorsman(Outdated)

Sale #22

http://www.tf2outpost.com/trade/21516902

Can't identify sale

Current sellers

http://www.tf2outpost.com/trade/21692308 b/o 15 keys