This is pretty much the only non-craftable hat that I have seen rise consistently recently. "I dream of a world, in which all hats can be treated as equals, painted or unpainted, craftable or non-craftable..."

Classifieds (As of 12 PM EST):

Litterally only one clean one at 1.66 http://prntscr.com/5rmaqo

Only a few valid sellers on outpost, and they are either horribly bumped, selling for offers, highballers, with one selling at 1.66, but none are selling at 1.33.

Recent sales:

http://www.tf2outpost.com/trade/24497963 1.66 ref

http://www.tf2outpost.com/trade/24414375 1.66 ref

http://prntscr.com/5rmcdj http://prntscr.com/5rmcyy http://prntscr.com/5rmd8x 1.66 ref

http://www.tf2outpost.com/trade/24595213 Sold in less than 12 hours at "backpack.tf prices" Unclear if 1.33, 1.66 or the mid range, but shows that the current price is a quicksell

Offers:

http://www.tf2outpost.com/trade/24362914 Rejected 1.33

Buyers:

http://www.tf2outpost.com/trade/24525092 Unsuccessful at 1.33 ref

Considering its pretty much impossible to get it for less than 1.66 ref, and it is the most common selling point, 1.66 ref seems good.