WHERE'S THE LAMB SAUUUUUUUUCE?!?!?

https://backpack.tf/item/3442684501

Sale 1) Sold for a Starstorm Insomnia Towering Pillar of Hats (35 Keys)

https://backpack.tf/profiles/76561197990935886#!/compare/1499126400/1499299200

http://www.tf2outpost.com/trade/29236346 - Buyout was 40 Keys

https://backpack.tf/item/4535193322

Sale 2) Sold for 40 Keys

https://backpack.tf/profiles/76561198227991072#!/compare/1498348800/1498435200

https://backpack.tf/item/5095282211

Sale 3) Sold for 30 Keys

https://backpack.tf/profiles/76561198113825857#!/compare/1501286400/1501372800

https://backpack.tf/item/2689880414

Sale 4) Sold for 26 Keys

https://backpack.tf/profiles/76561198220465784#!/compare/1499817600/1499904000

http://www.tf2outpost.com/trade/29257088 - Took 9 Days

https://backpack.tf/item/3691236477

Sale 5) Sold + 24 Keys + Shooting Star (1.55 Keys) for a Neutron Star Brown Bomber (60 Keys)

https://backpack.tf/profiles/76561198147588718#!/compare/1498953600/1499040000

60 - 24 - 1.55 = 34.45, which rounds to 34 Keys

Bomber Mini

https://backpack.tf/suggestion/59936a01cf6c7565300b9d16 - 60 Keys

Sale 6) Sold for a Minimal Wear Isotope Corsair Scattergun (44 Keys)

https://backpack.tf/profiles/76561198101300189#!/compare/1499040000/1499126400

http://www.tf2outpost.com/trade/29257018 - Buyout was 45 Keys

Sale 7) Sold for a Specialized Killstreak Australium Sniper Rifle (~24 Keys) + Specialized Killstreak Australium SMG (~7 Keys) + 1 Key

https://backpack.tf/profiles/76561198066956277#!/compare/1499299200/1499385600 - Seller's Backpack

https://backpack.tf/profiles/76561198113824319#!/compare/1499299200/1499472000 - Buyer's Backpack

24 + 7 + 1 = 32 Keys

Sale 8) Sold for a Starstorm Insomnia Towering Titanium Pillar of Hats + 13 Keys

https://backpack.tf/profiles/76561198113824319#!/compare/1499472000/1499817600

Fits in the range.

https://marketplace.tf/items/1111;5;u3016 - Marketplace sale at $77 (~38 Keys).

Calling 26 low and 44 high to make a cleaner range of 30 - 40 Keys.