1 of 1 in existence!

Sale 1:

Sold for Professional Australium Scattergun* (4.74*0.9) = 4.266 (rounding to 4.3 buds)

http://www.tf2outpost.com/trade/25320194

http://i.imgur.com/SfKv8eq.png?1

Sale 2: (invalid)

Involved in a complex deal

http://www.tf2outpost.com/trade/24379810

http://backpack.tf/profiles/76561198053233649?time=1420404369

Sale 3: (outlier, extremely low sale)

Sold with Professional Australium Axtinguisher + Australim Force-A-Nature for Death at Dusk Boxcar Bomber...

http://backpack.tf/profiles/76561198158380362?time=1420380423 → http://backpack.tf/profiles/76561198158380362?time=1420444800

Mini-suggestion for Professional Australium Scattergun*: (after tax)

~$94.45

~$99.57

~$109.13

~$106.14

~$119.73

~$96.71

~$105.52

~$121.55

Average price is approximately ~$101.60. Buds are currently going for ~$22.50 on SCM; valuing this at ~4.74 buds.

Notes:

http://i.imgur.com/10EXJ2B.png?1 - proof that owner isn't intending to resell

Conclusion:

Only one valid sale at 4.3 buds within the past 3 months. Also, the current owner intends to keep the hat so pricing this off a single sale should be fine.

Feel free to support/counter my suggestion!

(credits to harsheldon for providing the sale and aaroncsn for some assistance!)