Misty Skull Bonk Helm

Sale 1: 50 keys pure

https://gyazo.com/aa2e75e0e0727cbe3d68d0d5bcbc25df

https://backpack.tf/profiles/76561198090520837#!/compare/1517529600/1517616000 (compare link only shows 42 but check the screenshot)

https://i.imgur.com/8ajaRTb.png

Sale 2: 37 keys pure (QS; confirmed by sin that it was advertised as QS on discords)

https://backpack.tf/profiles/76561198220858440#!/compare/1518134400/1518307200

Sale 3: 37 keys pure (QS)

https://backpack.tf/profiles/76561198320427477#!/compare/1517702400/1517788800

Sale 4: 40 keys pure (QS from R+Ubi; credits TheEvilDevil) https://gyazo.com/c5ed242f6be9599f1eb278a6f6b83de7

Sale 5: Sold together with 1 key pure for Stormy Storm Executioner + Burly Beast (3.5); low outlier

https://backpack.tf/profiles/76561198220858440#!/compare/1517788800/1517875200

Sale 6: Bulk for Blizzardy Viewfinder

https://backpack.tf/profiles/76561198001174802#!/compare/1516320000/1516406400

Sale 7: Bulk

https://backpack.tf/profiles/76561198043225916#!/compare/1517097600/1517184000

Sale at 50. Buyers at 36. Unsold at 50 for 6 days https://imgur.com/a/tGCIo

Suggesting flat 50. Thanks to TheEvilDevil for his help in clearing up the value of sale 1.