Hai, first suggestion, plox don't hurt me.

Resuggesting AGAIN with better range.

1 year old price.

Classifieds on backpack.tf at the time of listing-

14 keys = 1 (quicksell. http://imgur.com/b9pCMHq)

Sellers:

http://www.tf2outpost.com/trade/24046665

The only one on outpost. 16 keys.

http://imgur.com/ORrpxKF

A little less than 1 bud, 2 keys, or about 15 keys.

I also have my own sale, aussie wrench for this unusual + vintage soldier's stash + strange snack attack.

Vint Stash = 1-1.2 keys

Strange snack attack = 3 keys

Aussie wrench = 1.55 * 13.25 (bud price) = ~20.5 keys

Proof of sale = http://imgur.com/JjNL3ju,qJcKmFO,Sk7JRnr,v1gxRLs,nfm9tUc#0

(20.5 * 0.9 = ~18.5 keys) - (1.1 * 0.9 = 1 key) - (3 * 0.9 = ~2.7 keys) = 14.8 keys total, rounding to 15 keys sold.

(Thank you Jacobmeister for the math)

Almost no one is selling this hat, 3 recent sellers and one sale, one seller is a quicksell for 14 keys, one for 15 keys, and one for 16 keys. My sale is 15 keys. No one is selling for 17 keys. Therefore, 14 is too low, and 17 is too high. 15 is a decent price. If you can offer any advice or counterproof, I'd appreciate it. Thanks!