1 of 2 in existence!

Sale 1:

Sold for Circling TF Logo Noble (37) + Purple Confetti Black Watch* (30) + Specialised Australium Sticky (~17) = 74 keys

http://www.tf2outpost.com/trade/27928505

http://backpack.tf/profiles/76561198128399166/#!/compare/1458111600/1458198000

Sale 2:

Involved in a bulk deal

http://www.tf2outpost.com/trade/27918751

http://backpack.tf/profiles/76561198107740754/#!/compare/1456992000/1457078400

Sale 3:

Sold for Isotope Killstreak Flower Power Scattergun (Minimal Wear)

http://www.tf2outpost.com/trade/27919669 | http://www.tf2outpost.com/trade/27833831

http://backpack.tf/profiles/76561198128399166/#!/compare/1457078400/1457251200

http://backpack.tf/profiles/76561198042966295/#!/compare/1457164800/145751040

Sale 4:

Sold for Green Energy Specialised Killstreak A Rather Festive Tree

http://www.tf2outpost.com/trade/27980291

http://backpack.tf/profiles/76561198109342990/#!/compare/1459209600/1459555200

http://backpack.tf/profiles/76561198196870999/#!/compare/1459209600/1459382400

Sale 5:

Sold for Frostbite Sole Mate = 80 keys (B/O of 60 keys caps it at that)

http://www.tf2outpost.com/trade/28024206

http://backpack.tf/profiles/76561198079682229/#!/compare/1459814400/1459900800

http://backpack.tf/profiles/76561198109342990/#!/compare/1459814400/1459900800

Mini-suggestion for Purple Confetti Black Watch*:

http://www.tf2outpost.com/trade/27938414 - B/O of 30 keys

~ No recent clear/valid sales, taking a value of 30 keys.

Notes:

http://www.tf2outpost.com/trade/27980291 - supposed C/O of aussie knife/sticky/medigun = ~70 keys

Conclusion:

Two valid sales at 74 and 60 keys. Taking a final range of 60-74 keys.

Feel free to support/counter my suggestion!