More sales:

You should really mention that you sold it for a Stormy Muffs (~36.5) :P

http://backpack.tf/profiles/76561198152914833/#!/compare/1458284400/1458370800

http://backpack.tf/profiles/76561198158396145/#!/compare/1458284400/1458370800

Sold for an OF Tossle (~21, mini below)

http://backpack.tf/profiles/76561198125015184/#!/compare/1454313600/1454572800

= 21 keys

OF Tossle

Sold for 21 keys

http://www.tf2outpost.com/trade/27942550

http://backpack.tf/profiles/76561198075931595/#!/compare/1458025200/1458630000

http://backpack.tf/profiles/76561198252332776/#!/compare/1458284400/1458370800

Ghosts Slick Cut (~36.5, mini below)

http://www.tf2outpost.com/trade/27903664

http://backpack.tf/profiles/76561198161545019/#!/compare/1456646400/1456732800

http://backpack.tf/profiles/76561198054384475/#!/compare/1456560000/1456732800

B/o = 35 keys

Ghosts Slick Cut

http://backpack.tf/vote/id/570617488667475b587ca98b ~36.5 keys

TW Warm-Up (~30.5, mini below)

http://www.tf2outpost.com/trade/27844324

http://backpack.tf/profiles/76561198167242778/#!/compare/1455868800/1455955200

http://backpack.tf/profiles/76561198054384475/#!/compare/1455609600/1455955200

B/o = 30 keys

TW Warm-Up

http://backpack.tf/vote/id/570621a3c44045425f029c31 ~30.5 keys

Qs'd for 25 pure

http://www.tf2outpost.com/trade/27988397

http://backpack.tf/profiles/76561198093544087/#!/compare/1459728000/1459814400

http://backpack.tf/profiles/76561198203537236/#!/compare/1459641600/1459728000

Bulk sale for a TW Antlers

http://backpack.tf/profiles/76561198116230594/#!/compare/1459641600/1459728000

http://backpack.tf/profiles/76561198053409522/#!/compare/1459641600/1459728000

Seller at 33 keys

http://www.tf2outpost.com/trade/28041077 - 2 days

This needs a wider range. You can take the OF Tossle sale as an outlier seeing that this mostly sells for above 30 keys.