Seller @ 40 for 3 weeks:

http://www.tf2outpost.com/trade/28503406

Sale 1:

https://backpack.tf/profiles/76561198152647646#!/compare/1471910400/1472256000

Sold with an Aussie Medi (25) + 1 key for a Frostbite Slick Cut (45)

45 - 25 - 1 = 19

Slick Cut Mini:

https://backpack.tf/profiles/76561198167149339#!/compare/1474675200/1474761600

Sold for a roboactive Sack

Sale 2:

https://backpack.tf/profiles/76561198155981570#!/compare/1472515200/1472601600

Sold for a Miami Nights Snaggle (19) + Vintage Pro Killstreak Gunslinger (~4)

19 + 4 = 23

Snaggle Mini:

https://backpack.tf/profiles/76561198219078375#!/compare/1476316800/1476403200

Sold with 4 keys for a Terror-Watt Your Worst Nightmare (23.5)

23.5 - 4 = 19.5

http://imgur.com/a/QuUGC - Clean seller at 19 however. Going with 19

Sale 3:

https://backpack.tf/profiles/76561198084310484#!/compare/1474416000/1474502400

Sold for a duped Strange Circling Peace Sign Private Eye (20)

Private Eye Mini:

Can't find one .-. it will most likely fit into the range however.

19

25

20