Sold for 110 keys:

http://www.tf2outpost.com/trade/26783515

http://www.tf2outpost.com/trade/26834767

http://backpack.tf/item/2696584859

http://backpack.tf/profiles/76561198031940460?time=1440313200 (August 23rd)

http://backpack.tf/profiles/76561198031940460?time=1440486000 (August 25th)

http://backpack.tf/profiles/76561198031940460?time=1440313200&compare=1440486000

110 keys

This is from the previous suggestion: http://backpack.tf/vote/id/55dc177eba8d88955d8b45dc

Sold for 120 CSGO keys + 10 TF2 keys:

http://www.tf2outpost.com/trade/26805769

http://backpack.tf/item/2731780545

https://i.gyazo.com/1fca80bb89397177b108add4798ad23e.png

https://i.gyazo.com/9bb9ff1f47e3bb0d78091eb84bc0fd28.png

120 * 1.1 + 10 = 142 keys

~140 keys

The CSGO keys were then sold at a ratio of 10:11 TF2 keys.

http://www.tf2outpost.com/trade/26930616

Sold for Strange Misty Skull Bonk Boy (~140) + Harvest Moon Backwards Ballcap (150):

http://www.tf2outpost.com/trade/26826907

http://backpack.tf/item/2808344151

http://backpack.tf/profiles/76561198005909532?time=1441954800 (September 11th)

http://backpack.tf/profiles/76561198005909532?time=1442041200 (September 12th)

http://backpack.tf/profiles/76561198005909532?time=1441954800&compare=1442041200

… Brendan at work.

Sold with Showstopper Taunt: Skullcracker for Burning Flames Exquisite Rack + ★ Gut Knife | Slaughter (Factory New):

http://www.tf2outpost.com/trade/27049473

http://backpack.tf/item/2839186856

http://backpack.tf/profiles/76561198055544256?time=1443337200 (September 27th)

http://backpack.tf/profiles/76561198055544256?time=1443423600 (September 28th)

http://backpack.tf/profiles/76561198055544256?time=1443423600&compare=1443337200

Should be used to price the Skullcracker.

Buk sale for Strange Harvest Moon Villain's Veil:

http://www.tf2outpost.com/trade/27040376

http://backpack.tf/item/2839186856

http://backpack.tf/profiles/76561197973509105?time=1442386800 (September 16th)

http://backpack.tf/profiles/76561197973509105?time=1442473200 (September 17th)

http://backpack.tf/profiles/76561197973509105?time=1442473200&compare=1442386800

Quicksold for 110 keys:

http://www.tf2outpost.com/trade/27082462

Can't track the keys.

Sold for 130 CSGO keys:

http://www.tf2outpost.com/trade/26662262

http://backpack.tf/item/2796787534

https://i.gyazo.com/bdc6751f561f11a2c9b5cbb015ea4120.png

https://i.gyazo.com/68cdcd1e6dbd64dadf39f87e20520e14.png

Buyout of 130 keys