Only sale within 3 months. Asked polar concerning the pure offer on the new seller's trade. Since the offers are more recent than the sale presented here, going to use the offer as the high end.

Sale #1

http://www.tf2outpost.com/trade/21692327

Sold for Aces High Liquidator's Lid(1.3 buds * 0.9 = ~1.2 buds) + 9 refs + ~3.8 keys in items

Backpack of seller

http://backpack.tf/profiles/76561198043344913?time=1407654000 Before

http://backpack.tf/profiles/76561198043344913?time=1407740400 After

Backpack of buyer

http://backpack.tf/profiles/76561198044051928?time=1407394800 Before

http://backpack.tf/profiles/76561198044051928?time=1407654000 After

Total: ~1.5 buds

Current seller

http://www.tf2outpost.com/trade/22645693 Was offered ~2 buds twice. Using it as high end.