Wow 3 year old price needs an update badly. Pretty stable. Don't have premium so this is all I can find

Bought for 12 keys

https://backpack.tf/profiles/76561198341969000#!/compare/1528761600/1528848000

Sold for cash; $42.01 CDN / $3.27 CDN (avg key price today scm) = 12.8 Rounding to 13

https://steamcommunity.com/market/listings/440/Unusual%20Familiar%20Fez $42.01 Jul 20/18

https://imgur.com/a/MEUVDM7 (remember it's after tax 15% that I receive)

https://imgur.com/a/IhmTCG3

https://backpack.tf/profiles/76561198367343645 Private bp buyer

There's this quicksell but cash buyers counter and buyers for any effect;

https://backpack.tf/profiles/76561198060427332#!/compare/1528588800/1528675200

And this idk;

https://backpack.tf/profiles/76561198026198026#!/compare/1528675200/1528761600

https://backpack.tf/profiles/76561198264117106#!/compare/1528675200/1528761600

No sales on mp.tf https://marketplace.tf/items/223;5;u29 but current seller at high end ~13 too

Buyers for any effect 10 keys on classies and ~ 11 on scm

Going 12-13

If you find any usable sale outside this range plz post em up :) cheers