Classifieds: http://backpack.tf/classifieds?item=Helmet%20Without%20a%20Home&quality=5&tradable=1&craftable=1&australium=-1&particle=62

Screenshot(s) of Classifieds:

http://imgur.com/fn3zAkW

<Sellers>

18 keys | http://backpack.tf/item/2335754953 | http://backpack.tf/u/76561198073553007 | http://www.tf2outpost.com/trade/28855936 | Listed 8 days ago [Bumped]

18 keys | http://backpack.tf/item/4238549907 | http://backpack.tf/u/76561198136239758 | http://www.tf2outpost.com/trade/28859054 | Listed 15 hours ago

Sold:

http://backpack.tf/profiles/76561198165884110#!/compare/1490400000/1490486400 - sold with 3 keys for Nuts n' Bolts Executioner = 18 keys

http://www.tf2outpost.com/trade/28838176

http://backpack.tf/profiles/76561198092449612#!/compare/1490227200/1490313600 - sold for 18 keys

http://www.tf2outpost.com/trade/28836305

http://backpack.tf/profiles/76561198092449612#!/compare/1489708800/1489795200 - sold for 16 keys (quicksold)

http://backpack.tf/profiles/76561198296076323#!/compare/1488931200/1489795200 - sold Strange Kill-a-Watt Conquistador = 20 keys

http://backpack.tf/profiles/76561198086948995#!/compare/1488844800/1488931200 - sold for Kill-a-Watt White Russian + sweets = high outlier

Mini's:

Strange Kill-a-Watt Conquistador:

http://backpack.tf/profiles/76561198114959212#!/compare/1490745600/1490832000 - sold for Aces High Samur-Eye = 20 keys (buyer re-selling at that price)