Funny.

Sale 1: Sold for Miami Nights Old Guadalajara[22.5 keys]+Strange Specialized Killstreak C.A.P.P.E.R[9 keys via mini]+Taunt: Burstchester[4 keys]

http://www.tf2outpost.com/trade/27904943 b/o was 30 keys

http://backpack.tf/profiles/76561198036949179#!/compare/1457078400/1460851200

22.5+9+4=35.5 rounding to 36 keys

b/o was 30, capping it there.

Sale 2: Sold with 2 keys for Strange Specialized Killstreak Australium Grenade Launcher[22 keys via mini(also had parts adding around 3 keys~)]

http://backpack.tf/profiles/76561198176125115#!/compare/1456560000/1456646400

22+3=25

25-2=23 keys

Mini on C.A.P.P.E.R:

Sellers at 9 keys https://gyazo.com/f5ec8939a9e5b58796bc1490c520be5d.png

Mini on Grenade Launcher:

Sellers at 22 keys https://gyazo.com/bbf84358e3eba45b89aa18b685c90251.png

I have sales at 23 and 30, making this a range of 23-30 keys.