Kill-a-Watt Familiar Fez

New price: 14 keys

[proof below]

SALE #1 = invalid

https://backpack.tf/profiles/76561198125791160#!/compare/1522972800/1523059200

https://backpack.tf/profiles/76561198155924527#!/compare/1522972800/1523059200

Likely quickbought and then used those keys to purchase the Bubbling Detective Noir.

SALE #2 = invalid

https://backpack.tf/profiles/76561198391438073#!/compare/1521763200/1522368000

Went to a quickbuy bot.

SALE #3 = 14 keys

https://backpack.tf/profiles/76561198091502579#!/compare/1522713600/1522800000

https://backpack.tf/profiles/76561198110475659#!/compare/1522800000/1522886400

http://www.tf2outpost.com/trade/29608195 - B/O 14 keys

Sold for a Prof KS Strange Festive Grenade Launcher + Prof KS Stickybomb Launcher + Prof KS Festive Eyelander.

I can get ~18 by selling them to bots. Easily caps at B/O.

SUMMARY

Sales: 14 keys

Sellers: 14 / 14 keys

https://gyazo.com/7ef174f953e68d78329a0eeba5d4ebc1

Going with 14 keys.