Pretty stable price after 2 years!

Sale 1: (outlier, quicksell)

Sold for 55 keys

55 keys

http://www.tf2outpost.com/trade/25561569

http://backpack.tf/profiles/76561198035099881?time=1427439600 (March 27th)

http://backpack.tf/profiles/76561198035099881?time=1427871600 (April 1st)

Sale 2:

Sold with 2 keys of sweets for a Stormy Storm Flipped Trilby and a Purple Energy Sergeant's Drill Hat

(80.5 + 19)*0.9 - 2 = 87.55 rounding to 88 keys

http://www.tf2outpost.com/trade/25631569

http://backpack.tf/profiles/76561198057041115?time=1429081200 (April 15th)

http://backpack.tf/profiles/76561198057041115?time=1429167600 (April 16th)

Sale 3:

Sold with 6 keys for a Disco Beat Down Galvanized Gibus

(128*0.9) - 6 = 109.2 capping at 100

http://www.tf2outpost.com/trade/25610697

http://backpack.tf/profiles/76561198057041115?time=1428303600 (April 6th)

http://backpack.tf/profiles/76561198057041115?time=1428390000 (April 7th)

Sale 4: (outlier)

Sold for a Green Energy Defiant Spartan

(53.5*0.9) = 48.15 rounding to 48 keys

http://www.tf2outpost.com/trade/25816633

http://backpack.tf/profiles/76561198070996875?time=1430031600 (April 26th)

http://backpack.tf/profiles/76561198070996875?time=1430722800 (May 4th)

Sale 5:

Sold with a Green Confetti Mountebank's Masque, a Smoking Crone's Dome, 5 keys and ~20 keys of sweets for a Ghastly Ghosts Jr Team Captain

(275*0.9) - 20 - 5 - 59 - 65 = 98.5 rounding to 99 keys

http://www.tf2outpost.com/trade/25108939

http://backpack.tf/profiles/76561198080785994?time=1425196800 (March 1st)

http://backpack.tf/profiles/76561198080785994?time=1425283200 (March 2nd)

Notes:

Mini for the Stormy Storm Flipped Trilby:

No recent sales I can make sense of, using the current price

Also B/O of 19 http://www.tf2outpost.com/trade/25877789

Conclusion:

Outliers/ quicksells at 55 and 48. Sales at 100, 99, and 88. Taking the final range at 88 to 100.