Few recent sales on this haunted helm:

Sale 1:

https://backpack.tf/profiles/76561198160856661#!/compare/1543363200/1543449600

https://backpack.tf/profiles/76561198410760897#!/compare/1543276800/1543449600

Bulk = Excluding

Sale 2:

https://backpack.tf/profiles/76561198453055175#!/compare/1545177600/1545264000

https://backpack.tf/profiles/76561198002757046#!/compare/1548115200/1548201600

Unknown, but probably quicksold = Excluding

Sale 3:

https://backpack.tf/profiles/76561198002757046#!/compare/1548201600/1548288000

https://backpack.tf/profiles/76561198195731583#!/compare/1548115200/1548288000

Quicksold for 47 keys pure = Excluding

Sale 4:

https://backpack.tf/profiles/76561198453055175#!/compare/1545091200/1545177600

https://backpack.tf/profiles/76561198160856661#!/compare/1545091200/1545177600

https://cdn.discordapp.com/attachments/536724005693030411/546437455113355274/unknown.png

Sold for 16~ in Sweets + Vivid Plasma Cotton Head

Torb said his B/o was 65 keys

Mini:

https://marketplace.tf/items/30175;5;u16

Sale on Dec 7 for $135/1.7 = 79.41 = 79 keys

Unsolds @ 80

Micro:

https://backpack.tf/profiles/76561198143051472#!/compare/1546819200/1546905600

https://backpack.tf/profiles/76561198002757046#!/compare/1546819200/1546905600

Sold for Caribou + 1 keys + Taunt

Nano for Caribou:

https://backpack.tf/profiles/76561198797842085#!/compare/1549497600/1549584000

https://backpack.tf/profiles/76561198114996116#!/compare/1549497600/1549584000

Sold for 62 keys

Taking 65 keys