Item 1

https://backpack.tf/item/11899705999

Sale 1

£77.36 on SCM on 20th February (https://i.imgur.com/RUCKvoH.png)

Keys averaged £1.94 at time of sale (https://i.imgur.com/UmokpEJ.png)

77.36/1.94 = 39.86. Rounding to 40 flat.

Sale 2

https://backpack.tf/profiles/76561198231941228#!/compare/1673481600/1673827200

Bulk with spelled Macho Mann and spelled Strange Festive Eyelander for 106 keys and a boatload of cases. Spelled items are completely ??? when it comes to pricing so I think this is not usable.

Only other unusual Neon-ween Black Boxes have no price listed at all.