https://backpack.tf/item/4551007848

Sale 1) Sold for 29 Keys

https://marketplace.tf/items/30743;5;u34

Sold on Marketplace.tf June 8th at $56.30

http://manicbot.me/keyprice/?at=2018-06-08

$56.30 / $1.94 = 29.02 keys rounded to 29 Keys

-outlier

Sale 2) Sold for 23 Keys

https://backpack.tf/profiles/76561197994697258#!/compare/1529971200/1530057600

Terror-Watt Hound Dog (12-13 Keys) + Kill-A-Watt Hive Minder (9-10 Keys) + 1 Key Pure = 22-24 Keys (averaged to 23 keys)

https://backpack.tf/stats/Unusual/Hound%20Dog/Tradable/Craftable/57

https://backpack.tf/stats/Unusual/Hive%20Minder/Tradable/Craftable/56

https://backpack.tf/item/4450146135

Sale 3) Sold for 20 Keys

https://backpack.tf/profiles/76561198126724119#!/compare/1531526400/1532217600

https://backpack.tf/profiles/76561198047941585#!/compare/1532044800/1532131200

Haunted Ghosts Elf Esteem (16-18 Keys) + The B.M.O.C (5 Keys) for Bubbling Patriots Peak + 2 Keys Pure = 19-21 Keys (averaged to 20 keys)

-outlier

+++The B.M.O.C.

https://postimg.cc/image/klemcrobf/

https://backpack.tf/stats/Unique/B.M.O.C./Tradable/Craftable

Valued at 4.6-4.7 Keys, rounded to 5 Keys.

Sale 4) Sold for 21 Keys

https://backpack.tf/profiles/76561198086863106#!/compare/1533081600/1533254400

Sale 5) Sold for 26-27 Keys

https://postimg.cc/image/8wb4w1j63/

Smoking Conquistador (9 Keys) + Massed Flies Sky High Fly Guy (9 Keys) + 9 Keys Pure = 27 Keys

https://backpack.tf/stats/Unusual/Conquistador/Tradable/Craftable/35

https://postimg.cc/image/8m3mcchaz/

Smoking Conquistador 8.5-9 Keys rounded to 9 Keys

https://backpack.tf/stats/Unusual/Sky%20High%20Fly%20Guy/Tradable/Craftable/12

Massed Flies Sky High Fly Guy valued at 9 Keys

1 Sell Order 26 Keys pure

3 Buy Orders just over 20 Keys pure

https://postimg.cc/image/mfwkff1xn/

Conclusion

1 sold for 20 Keys -outlier

1 sold for 21 Keys

1 sold for 23 Keys

1 sold for 27 Keys

1 sold for 29 Keys -outlier

Average: 24 Keys

Price range: 21 - 27 Keys