Haunted Phantasm Jr Hive Minder (35)
https://backpack.tf/stats/Unusual/Hive%20Minder/Tradable/Craftable/86

Sale 1)
https://backpack.tf/profiles/76561198025970990#!/compare/1561161600/1561334400
https://backpack.tf/profiles/76561198001665268#!/compare/1561248000/1561334400 - Bulky

Sale 2)
https://backpack.tf/item/3149643430 + https://marketplace.tf/items/tf2/30093;5;u86 - Sold for $65 / $1.84 = 35 Keys
No buyout as banned user

Summary:
35