Credit to iron rock and TwistedMedia!

Sale 1)

Seller: https://next.backpack.tf/profiles/76561198216485851/compare?from=1731283200&to=1731542400

Buyer: https://next.backpack.tf/profiles/76561199183171982/compare?from=1731283200&to=1731369600

Item History: https://next.backpack.tf/item/15137545154

Withdrawn from MPTF Bot.

Sale 2)

Seller: https://next.backpack.tf/profiles/76561199183171982/compare?from=1731456000&to=1731542400

Buyer: https://next.backpack.tf/profiles/76561199429723284/compare?from=1731456000&to=1731542400

Item History: https://next.backpack.tf/item/15137545154

Forum Post of Buyer confirming it sold for 265 Keys: https://forums.backpack.tf/topic/85978-price-check-mountain-halo-all-hallows-hatte/

Taking 265 Keys here.

Sale 3)

Broker: https://next.backpack.tf/profiles/76561199429723284/compare?from=1731456000&to=1731542400

Seller: https://next.backpack.tf/profiles/76561199510026647/compare?from=1731369600&to=1731542400

Item History: https://next.backpack.tf/item/15137545154

Forum post mentioned that his friend, .com was brokering it for a day: https://forums.backpack.tf/topic/85978-price-check-mountain-halo-all-hallows-hatte/

Sale 4)

Seller:

https://backpack.tf/profiles/76561199510026647#!/compare/1732492800/1732752000

Broker:

https://next.backpack.tf/profiles/76561199429723284#!/compare/1732492800/1732579200

Buyer:

https://backpack.tf/profiles/76561198346080922#!/compare/1732406400/1732579200

210 Keys and broker received 27 keys

Sales:

265

210

Going with a range of 210 - 265 Keys or an average of 237.5 Keys flat!

Feedback welcome! Thanks!