Item 1: https://backpack.tf/item/11174637598

Sale 1:

https://backpack.tf/profiles/76561198311498888#!/compare/1769990400/1770076800

https://backpack.tf/profiles/76561198336662358#!/compare/1769990400/1770076800 - Was sold for bulk for a eerie Orb Anger same day

https://backpack.tf/profiles/76561198155192488#!/compare/1769990400/1770076800 - Actual buyer

Sold for 180 keys pure (ID 16687944842)

Sale 2:

https://backpack.tf/profiles/76561198859721638#!/compare/1769904000/1769990400

https://backpack.tf/profiles/76561198311498888#!/compare/1769904000/1769990400

Dumped to STN for 160 keys pure (ID 16685126848)

Sale 3:

https://backpack.tf/profiles/76561198107219183#!/compare/1764460800/1764633600

https://backpack.tf/profiles/76561198859721638#!/compare/1764460800/1764547200

Sold with 40 keys for a Scorching Flames Napper's Respite. Better used there

Sale 4:

https://backpack.tf/profiles/76561199004803157#!/compare/1764028800/1764115200

https://backpack.tf/profiles/76561198107219183#!/compare/1762732800/1764115200

Untrace

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Sellers:

BPTF - https://imgur.com/a/PjtgECa - 1 listed on MP, comment shows ~222 keys

MPTF - https://marketplace.tf/items/tf2/617;5;u9 - 2 @ $399.99

STN - https://stntrading.eu/item/tf2/Unusual+Green+Energy+Backwards+Ballcap - None

SCM - Can't access :(

Sale(s):

180, 160

Considering 160 was a dump and there are buyers for higher now leaving it out.

Going with 180 keys flat