countering because previous suggestion was a mess and had incorrect information as well as failing to identify outliers

1. credit to plaxorous for this one

http://www.tf2outpost.com/trade/21818610

Sold for 2 buds.

http://www.tf2outpost.com/item/440,2880212782,143,6

http://www.tf2outpost.com/item/440,2869933327,143,6

2. http://www.tf2outpost.com/trade/21266682

sold for 2 buds and a bill's

http://backpack.tf/item/92360612

http://backpack.tf/item/93278290

http://backpack.tf/item/48260591

but buyout was 2, so ~2.

3. http://www.tf2outpost.com/trade/22304073

http://www.tf2outpost.com/item/440,2918234420,1113,5

added 2 buds

http://www.tf2outpost.com/item/440,2951506279,143,6

http://www.tf2outpost.com/item/440,2951506286,143,6

for a purple energy fez

http://www.tf2outpost.com/item/440,1921585763,223,5

this places the taunt at ~1.8 after applying overpay to the fez.

http://backpack.tf/profiles/76561198007979103?time=1410073200 (sort by time)

seems nothing else was added; presumably he put the taunt on the market which is why it's not in his backpack at this time.

4. sold for orb fire ushanka, ~1 after overpay. outlier.

http://backpack.tf/item/1343637659 and http://backpack.tf/item/2764014557

the first 3 sales seem to be the most useful. the previous suggester has a few sales at what should be ~0.9 and ~1 after overpay (namely his own purchase with a lantern pugilist and another where it was bought for an orb fire ushanka), however these seem to be outliers given the group of 3 sales at 1.8-2. aside from that, he has instances of a sale for an unpriced unusual and apparently one for a g.e. cockswain, however the histories don't match and the guy who is supposed to have paid the cockswain for the taunt actually bought it for the orb fire ushanka as shown.