Selling:

http://www.tf2outpost.com/trade/28462492 - b/o: 200 keys (17 days)

http://www.tf2outpost.com/trade/28486965 - b/o: 199 keys (1 week)

http://www.tf2outpost.com/trade/28480050 - b/o: 200 keys (2 months)

Sold:

http://backpack.tf/profiles/76561198122318990?time=1473206400

http://backpack.tf/profiles/76561197965442362#!/compare/1473120000/1473206400 - sold for duped Sunbeams Killer's Kabuto + sweets = 211 keys (buyer is selling for 199 keys)

http://backpack.tf/profiles/76561198120358351#!/compare/1472860800/1473206400 - sold for Molten Mallard Vive La France = 99 keys (outlier)

Mini's:

duped Sunbeams Killer's Kabuto:

http://www.tf2outpost.com/trade/28412410

http://backpack.tf/profiles/76561198058994166?time=1471996800

http://backpack.tf/profiles/76561198005284685#!/compare/1471824000/1471910400 - sold with 50 keys for Burning Flames Tyrant's Helm = 210 keys

Molten Mallard Vive La France:

http://www.tf2outpost.com/trade/28304685

http://backpack.tf/profiles/76561198082050096#!/compare/1467417600/1467504000 - sold for Frostbite Front Runner + Strange Specialized Killstreak Corsair Scattergun (Factory New) + 29 keys = 99 keys