Most of the sales that occured in the past 3 months seem to have been via the SCM as couldn't trace their backpack history.

Sellers:

http://www.tf2outpost.com/trade/24229954 B:O 15 keys

http://www.tf2outpost.com/trade/23975032 B.O 17 keys

Sales:

Sale 1:

backpack before: http://backpack.tf/profiles/76561198059494711?time=1418889600

backpack after: http://backpack.tf/profiles/76561198059494711?time=1418976000

Sold for 16 keys which is

1.42 buds rounded down to

1.4 buds

Sale 2:

backpack before: http://backpack.tf/profiles/76561198044481005?time=1417507200

backpack after: http://backpack.tf/profiles/76561198044481005?time=1417680000

Bought for a bud

Additional proof:

http://www.tf2outpost.com/trade/23975032 Offered a miami nights private eye (2-2.4) if owner adds a bud (more or less) in hats.

http://www.tf2outpost.com/trade/23757783 B.O of 1.2

http://www.tf2outpost.com/trade/23992291 B.O of 1.3 buds