Money.

Sale 1: Sold for Strange Professional Killstreak Australium Tomislav[16 keys via mini]+Strange Construction PDA[10 keys]+Strange Professional Killstreak Bushwacka[2 keys via mini]

http://backpack.tf/profiles/76561198174032451/#!/compare/1459555200/1459814400

16+10+2=28 keys

Sale 2: Sold for Aces High Flipped Trilby[23.5 keys]

http://backpack.tf/profiles/76561198070064767/#!/compare/1455696000/1455782400

http://backpack.tf/profiles/76561198112764226/#!/compare/1455609600/1455782400

23.5 rounding to 24 keys

Mini on Tomislav:

Seller at 16 keys https://gyazo.com/eefbe149402e2c0d6020c096ac701b94.png

Mini on Bushwacka:

Seller at 2 keys https://gyazo.com/858b3fe086688a2cf56a5fb868c3bf0b.png

I have sales at 24 and 28, making this a range of 24-28 keys.