17 month or so old

http://www.tf2outpost.com/trade/20256285 - Sold for Kill-a-Watt Impaler** + Terror-Watt Toy Tailor*** + TF Logo Carousers**** (9 buds) [Offer Value: 8.1 buds] {Outlier}

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http://www.tf2outpost.com/trade/20015629 - Sold for, along with Max Head, for Aces High Brother Hood of Arms**** (9-3=6 buds)

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http://www.tf2outpost.com/trade/19649872 - Bought for Burning Gatsby***** + 1 bud + 6 keys (5.8 buds)

Before: http://backpack.tf/profiles/76561198021809747?time=1399705200

After: http://backpack.tf/profiles/76561198021809747?time=1399791600

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http://www.tf2outpost.com/trade/19892437 - Sold for Clean Max + 2 buds

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http://www.tf2outpost.com/trade/19639415 - Sold for Green Energy Hive Minder (5.5 buds) [Offer Value: 5 buds]

Notes/Mini-suggestions

** - http://www.tf2outpost.com/search/212432310 - Unsold B/O's of 6,6 and 5.5. So took the low-end which is 5

** - http://www.tf2outpost.com/trade/20115562 - Part of a complex overpay for a Purple Energy Bonk.

http://www.tf2outpost.com/trade/20252619 - Was willing to sell for Australium Rocket (2.8 buds) [Rounded Down]

*** - http://www.tf2outpost.com/trade/18969868 - B/O of 2 buds

**** - http://www.tf2outpost.com/trade/20306755 - Bought for Misty Skull Swagmans (9 buds, offered)

***** - http://www.tf2outpost.com/search/212435403 - Every single on Outpost is either duped or old.

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TL;DR

Sales at 5, 5, 5.8, 6 and 8.1