Proof below.

3 month-old price.

Sales:

http://www.tf2outpost.com/trade/15450007

-b/o of ~2.8 buds

-barnstormer+nnb chapeau seems to have sold/bought for this aces waxy (2.6): http://www.tf2outpost.com/trade/15192128

-~1.7 buds

http://www.tf2outpost.com/trade/15328648

-barnstormer+nnb chapeau in above sale seems to have bought this c. bubbles stovepipe=~2.5 buds

-bp history proves he had it:

http://backpack.tf/id/76561198010629489?time=1383375600

http://www.tf2outpost.com/trade/14820752

-wanted 2 buds

-sold for vivid mullet=1.8 buds

http://www.tf2outpost.com/trade/15434939

-wanted 2.9 buds

-seems to have sold for stormy professors (not in history, also not listed nor priced here)

-proof paradox owned it:

http://www.tf2outpost.com/trade/15435183

-paradox sold/bought his peace noble for 1 bud (check history)+professor: http://www.tf2outpost.com/trade/15435183

-noble (check history): http://www.tf2outpost.com/trade/15444147

-1.7 buds

Current trades:

http://www.tf2outpost.com/trade/15667763

-wants 3 buds

-no offers

http://www.tf2outpost.com/trade/14934651

-only 1 offer (unpriced and on 2 hats) in 1 month

Sales: 1.7, 1.7, 1.8, 2.5

All sales cover suggested range. Unusual overpay and original prices used. Any further insight on the unclear trades would be great.