Re-suggestion from the old one.

Sale #1

Item: https://backpack.tf/item/6939806337

https://backpack.tf/profiles/76561198026198026#!/compare/1599782400/1599868800

https://backpack.tf/profiles/76561198168820816#!/compare/1599696000/1600041600

Confirmed with the buyer - https://prnt.sc/vxjv15

Sold for 42 Keys

Sale #2

https://backpack.tf/profiles/76561198168820816#!/compare/1606780800/1606867200

https://backpack.tf/profiles/76561198140584551#!/compare/1606780800/1606867200

Compare doesn't show much here, trade history - https://prnt.sc/vw7iw7

Sold in bulk

Sale #3

https://backpack.tf/profiles/76561198140584551#!/compare/1607212800/1607299200

1:1 for Miami Nights Hong Kong Cone (~78 Keys) + some sweets

Sold for 78 Keys

Sale #4

Item: https://backpack.tf/item/8764719961

https://backpack.tf/profiles/76561199099521803#!/compare/1607731200/1607817600

https://steamcommunity.com/market/listings/440/Unusual%20Nasty%20Norsemann

https://imgur.com/a/GKzs8vh

Confirmed with the seller. Sold for €95.91 - https://prnt.sc/w7pgvf

Keys were €1.75 [95.91/1.75 = 54.8; 55 Keys]

Sold for 55 Keys

Summary/Conclusion

Sales at

42 Keys

55 Keys

78 Keys

Going with 55-78 keys range here as the 42 Keys is a quicksell and I've been offered the same quicksell price personally when i had the hat. Thanks for the new sale Shuffle Spy.