Selling:

http://www.tf2outpost.com/trade/28224981 - b/o: 70 keys (1 week)

http://www.tf2outpost.com/trade/28243962 - b/o: 60 keys (1 day)

Sold:

http://backpack.tf/profiles/76561197999873164#!/compare/1459555200/1459641600

http://backpack.tf/profiles/76561198145269377#!/compare/1459555200/1459641600 - sold for Death at Dusk Runner's Warm-Up = 103 keys (outlier)

http://backpack.tf/profiles/76561198027768238#!/compare/1464825600/1464912000

http://backpack.tf/profiles/76561198086948995#!/compare/1464825600/1464912000 - sold with Strange Professional Killstreak Australium Ambassador + sweets for duped Sunbeams Frenchman's Beret = low

http://backpack.tf/profiles/76561198030050182#!/compare/1464566400/1464652800 - sold with sweets for Strange Kill-a-Watt Deep Cover Operator + 2 keys = 44 keys

http://backpack.tf/profiles/76561198114030585#!/compare/1464307200/1464652800 - sold for Amaranthine Big Elfin Deal = 46 keys

http://www.tf2outpost.com/trade/28193789

http://backpack.tf/profiles/76561198094428372#!/compare/1463961600/1464134400 - sold with Collector's Professional Killstreak Flare Gun + Collector's Professional Killstreak Powerjack + Strange Professional Killstreak Flower Power Shotgun (Factory New) for Energy Orb Professional Killstreak Backwoods Boomstick Shotgun (Field-Tested) = 28 keys (outlier)

Mini's:

Strange Kill-a-Watt Deep Cover Operator:

http://www.tf2outpost.com/trade/28117780

http://backpack.tf/profiles/76561198107903058#!/compare/1463529600/1463616000 - sold for Cloudy Moon Glengarry Bonnet = 51 keys

Amaranthine Big Elfin Deal:

http://backpack.tf/profiles/76561198012004403#!/compare/1463875200/1464480000 - sold for Molten Mallard Larrikin Robin + sweets = 46 keys

Energy Orb Professional Killstreak Backwoods Boomstick Shotgun (Field-Tested):

https://steamcompanion.com/tf2/Unusual-Professional-Killstreak-Backwoods-Boomstick-Shotgun-Field-Tested/ - 51-60 keys