Proof below. 6 month-old price.

Clean only, correct me if I'm wrong.

Sales:

http://www.tf2outpost.com/trade/15561590

-wanted 10 buds

-sold for harvest juju=8 buds

-no other notable offers

http://www.tf2outpost.com/trade/15162655

-wanted 11 buds

-fedora+misty degroot (5.05) sold/bought for vivid chapeau (3.4 outdated)+smoking phantom (2.25)+stormy antlers (unpriced)

-no notable offers

http://www.tf2outpost.com/trade/14146302

-b/o of 9.5 buds

-unknown sale but seems to be steaming beak+buds

-notable offers:

c9 reggae=7.1

a.f. hoodie+steaming noble=7.7

http://www.tf2outpost.com/trade/14449908

-bought beams crown: http://www.tf2outpost.com/trade/14991625

-~8.3 buds

-no notable offers

http://www.tf2outpost.com/trade/15704731

-sold for 2 o.f. beaks+o.f. mirror+1 bud+15 keys (was willing to do set+2 buds seen below)

-7.5 buds

-no notable offers

http://www.tf2outpost.com/trade/14325837

-sold for c9 cannon (unpriced and looks like outlier)

Current trades:

http://www.tf2outpost.com/trade/2994777

-year old trade, b/o of 9 buds

-no recent notable offers in 2 months

http://www.tf2outpost.com/trade/16041750

-b/o of 9 buds, 1 week

-notable offers:

stormy tc+2 buds=7.1

o.f. medic set seen above+2 buds=7.7 buds

http://www.tf2outpost.com/trade/16116073

-b/o of 9 buds

http://www.tf2outpost.com/trade/13351320

-b/o of 10 buds, few months old

Clear sales: 7.5, 8, 8.3

Making the range from the simple price-able sales, so 7.5-8.3. Not much clear proof for this but this should do. Unusual overpay and original prices used.