Sale 1:

Sold for 20 keys

https://backpack.tf/profiles/76561198047819527#!/compare/1731888000/1731974400

https://backpack.tf/profiles/76561198246544682#!/compare/1731715200/1732060800

https://backpack.tf/item/13341500071

= 20 keys

Sale 2:

Sold for 15 keys

https://backpack.tf/profiles/76561198191137318#!/compare/1729209600/1729296000

https://backpack.tf/profiles/76561198077080408#!/compare/1728950400/1729296000

https://backpack.tf/item/14965083953

= 15 keys

Sale 3:

Sold for 5 keys + Strange Bazaar Bargain (~1.5) + Strange Cute Suit (~4 keys) + Strange Brown Bomber (~0.6) + Strange Main Cast (~0.5) + Soldier’s Killed Part (~0.4) + Sappers Destroyed Part + (~1.4)

https://backpack.tf/profiles/76561198191137318#!/compare/1729814400/1729900800

https://backpack.tf/profiles/76561198220064081#!/compare/1729728000/1729814400

https://backpack.tf/item/5083021232

5 + 1.5 + 4 + 0.6 + 0.5 + 0.4 + 1.4 = 13.4

It’s likely I’ve missed stuff that was added, or I’ve undervalued some of it, so I’m going to round this up to 14 instead of going down.

= 14 keys

Sale 4:

Sold for 8 keys

https://backpack.tf/profiles/76561198152870586#!/compare/1732233600/1732406400

https://backpack.tf/profiles/76561198119097038#!/compare/1732147200/1732233600

https://backpack.tf/item/4771321946

= 8 keys

Other Sales:

#1

https://backpack.tf/profiles/76561198369329112#!/compare/1731283200/1732406400

https://backpack.tf/profiles/76561199059160806#!/compare/1731196800/1731283200

https://backpack.tf/item/15005475515

Untraceable

#2

https://backpack.tf/profiles/76561199059160806#!/compare/1731542400/1731628800

https://backpack.tf/profiles/76561198401158635#!/compare/1732233600/1732320000

https://backpack.tf/item/15005475515

Untraceable

#3

https://backpack.tf/profiles/76561198120812870#!/compare/1728000000/1728604800

https://backpack.tf/profiles/76561199059160806#!/compare/1728950400/1729036800

https://backpack.tf/item/14965083953

Untraceable

#4

https://backpack.tf/profiles/76561199059160806#!/compare/1728950400/1729036800

https://backpack.tf/profiles/76561198191137318#!/compare/1728950400/1729036800

https://backpack.tf/item/14965083953

Untraceable

#5

https://backpack.tf/profiles/76561198199964389#!/compare/1729468800/1729641600

https://backpack.tf/profiles/76561198980609548#!/compare/1722211200/1729641600

https://backpack.tf/item/3181009270

Untraceable/Bulk

#6

https://backpack.tf/profiles/76561198980609548#!/compare/1729900800/1729987200

https://backpack.tf/profiles/76561198273331466#!/compare/1730332800/1730419200

https://backpack.tf/item/3181009270

Untraceable

#7

https://backpack.tf/profiles/76561198273331466#!/compare/1730419200/1730505600

https://backpack.tf/profiles/76561198163609625#!/compare/1730332800/1730505600

https://backpack.tf/item/3181009270

Untraceable

#8

https://backpack.tf/profiles/76561198380608620#!/compare/1728518400/1728604800

https://backpack.tf/profiles/76561198191137318#!/compare/1728518400/1728604800

https://backpack.tf/item/5083021232

Sold with 30 ref for Obnoxious Confetti Scaredy-Cat

Not many sales to use on the Scaredy-Cat, would probably be better to use on that instead.

Sellers:

https://marketplace.tf/items/tf2/1107;5;u3183

https://backpack.tf/item/15039887050 - $25.99 (~13.8 keys)

Sales at:

8

14

15

20

Buyer at 10, and 8 looks like an outlier. Excluding 8.

20 also looks like an outlier, and the marketplace seller suggests it’s too high. Excluding 20.

Taking 14-15 keys.