Only 3 exist, 2 have been in the same peoples backpacks since 2015, so it's safe to say there hasn't been any sales other than mine.

Only sale recently

Sold for 31 keys pure

Proof - http://imgur.com/a/kJlwH

I bought it with my Australium Spek KS. Rocket Launcher worth 48 at the time, while the owner overpayed greatly with prof. KS strange weapons.

So I am unable to price the hat off that sale. Definitely an outlier.

Sale: http://imgur.com/a/QjVVb

Hope I did good.