Proof below. Original price: 1-1.1, 3 months old.

Sales:

http://www.tf2outpost.com/trade/16496889

-wanted ~1.3 buds

-cosa+white bills bought smoking chapeau: http://www.tf2outpost.com/trade/16487820

-~1.3 buds, no overpay as offered

http://www.tf2outpost.com/trade/16396463

-sold/bought for parted sf minigun: http://www.tf2outpost.com/trade/16487713

-~1.2 buds

http://www.tf2outpost.com/trade/16446383

-wanted ~1.3 buds

-sold for 1 bud+4 keys+sweets=1.3 buds

http://www.tf2outpost.com/trade/16205530

-b/o of ~1.2 buds

-cosa+s. huntsman sold/bought for nnb noble: http://www.tf2outpost.com/trade/16307713

-huntsman: http://www.tf2outpost.com/trade/16324304

-1.1 buds

Current trades:

http://www.tf2outpost.com/trade/16498669

-wants ~1.2 buds

http://www.tf2outpost.com/trade/15475674

-wants ~1.3 buds, 2 weeks

Sales: 1.1, 1.2, 1.3, 1.3

Not many sales but enough to form a range from them. Overpay and original prices used.