Selling:

http://www.tf2outpost.com/trade/28525842 - b/o: 18 keys (1 day)

http://www.tf2outpost.com/trade/28514933 - b/o: 18 keys (1 week)

Sold:

http://www.tf2outpost.com/trade/28514759

http://backpack.tf/profiles/76561198080179568#!/compare/1475020800/1475107200 - sold for 15 keys (quicksold)

http://www.tf2outpost.com/trade/28480623

http://backpack.tf/profiles/76561198210993413#!/compare/1473984000/1474070400 - sold for 16 keys

http://backpack.tf/profiles/76561198269562512#!/compare/1475712000/1475798400 - sold with 2 keys for Cloud 9 Backbiter's Billycock = 17 keys

http://www.tf2outpost.com/trade/28521953

http://backpack.tf/profiles/76561198221490444#!/compare/1475539200/1475625600 - sold for 14 keys + sweets = 15 keys (quicksold)

http://backpack.tf/profiles/76561198162915370#!/compare/1475366400/1475539200 - sold for 14 keys (outlier)

Mini's:

Cloud 9 Backbiter's Billycock:

http://backpack.tf/profiles/76561198125791160#!/compare/1473984000/1474070400

http://backpack.tf/profiles/76561198066237738#!/compare/1473984000/1474070400 - sold for Kill-a-Watt Magistrate's Mullet + 3 keys = 23 keys

http://www.tf2outpost.com/trade/28524548 - b/o: 19 keys

http://www.tf2outpost.com/trade/28523424 - b/o: 19 keys