8 months old price.

Selling

http://www.tf2outpost.com/trade/20498636 - 24 keys (1.5)

http://www.tf2outpost.com/trade/20094358 - 33 keys (2)

http://www.tf2outpost.com/trade/20307458 - 2 buds

http://www.tf2outpost.com/trade/19383603 - ?

http://www.tf2outpost.com/trade/20478626 - ?

http://www.tf2outpost.com/trade/19877761 - ?

Solds:

http://www.tf2outpost.com/trade/20169592 > http://www.tf2outpost.com/trade/20215969

Sold for Flaming Lantern Engineer's Cap (1.7 after overpay)

http://www.tf2outpost.com/trade/20098782 > http://www.tf2outpost.com/trade/20169592

Blizzardy Storm Tavish's Crown (1.4 after overpay)

http://backpack.tf/profiles/76561198069513015?time=1403161200 > http://backpack.tf/profiles/76561198069513015?time=1403247600

Sold for 21 keys + 6 ref (1.3)

http://backpack.tf/profiles/76561198044018512?time=1397545200 > http://backpack.tf/profiles/76561198044018512?time=1397631600

Sold for Australium FaN + 4 keys + 3 ref (1.1, outlier)

Note: Buds were 19 keys at the time and the FaN were 17.5 keys.

http://backpack.tf/profiles/76561198103518195?time=1399791600 > http://backpack.tf/profiles/76561198103518195?time=1399878000

Sold for Australium Wrench + S.F Flamethrower (1.6)

Note: Buds were 18 keys at the time

Summary:

1 sale at 1.1 buds

1 sale at 1.3 buds

1 sale at 1.4 buds

1 sale at 1.6 buds

1 sale at 1.7 buds

1 seller at 1.5 buds

1 seller at 2 buds

The average from the 5 sales are 1.42 buds which is closer to 1.7 than 1.1, therefore making 1.1 an outlier for a smaller range.

Putting a range of 1.3-1.7 buds.