Sale 1:

Sold for 14 keys

https://backpack.tf/profiles/76561199389372563#!/compare/1737763200/1737849600

https://backpack.tf/profiles/76561198192543428#!/compare/1737849600/1738108800

https://gladiator.tf/sales?item=Fountain%20of%20Delight%20Taunt:%20The%20High%20Five!&at=2025-02-14T03:48:06.081Z - confirmed

https://backpack.tf/item/6609094078

= 14 keys

Sale 2:

Sold for 11 keys

https://backpack.tf/profiles/76561198837056150#!/compare/1737417600/1737504000 - Near ID: 15381450190

https://backpack.tf/profiles/76561199023818340#!/compare/1737504000/1737590400

https://backpack.tf/item/15157652879

= 11 keys

Sale 3:

Sold with negligible metal for 9 keys

https://backpack.tf/profiles/76561198311498888#!/compare/1735689600/1735776000 - Near ID: 15309128350

https://backpack.tf/profiles/76561198049304376#!/compare/1735689600/1735862400

https://backpack.tf/item/13960798871

= 9 keys

Sale 4:

Sold for 8 keys + ~1 key in metal (Buyer’s end)

https://backpack.tf/profiles/76561199564942025#!/compare/1736812800/1736899200

https://backpack.tf/profiles/76561198287684920#!/compare/1736726400/1736812800

https://backpack.tf/item/6119383320

= 9 keys

Other Sales:

#1

https://backpack.tf/profiles/76561199023818340#!/compare/1737849600/1737936000

https://backpack.tf/profiles/76561199389372563#!/compare/1737936000/1738022400

https://backpack.tf/item/15157652879

Sold for Festive Falling Star Nightcap, hoping to use there

#2

https://backpack.tf/profiles/76561199098694108#!/compare/1738454400/1738627200

https://backpack.tf/profiles/76561199070077143#!/compare/1734566400/1739059200

https://backpack.tf/item/12353073524

Untraceable

#3

https://backpack.tf/profiles/76561199044617108#!/compare/1736294400/1736726400

https://backpack.tf/profiles/76561199564942025#!/compare/1736640000/1736726400

https://backpack.tf/item/6119383320

Bulk for keys

#4

https://backpack.tf/profiles/76561199108134313#!/compare/1733875200/1733961600

https://backpack.tf/profiles/76561198375398735#!/compare/1733875200/1734652800

https://backpack.tf/item/3619287506

Untraceable

#5

https://backpack.tf/profiles/76561199112522018#!/compare/1733702400/1733788800

https://backpack.tf/profiles/76561198061770091#!/compare/1733529600/1736467200

https://backpack.tf/item/2714219605

https://gladiator.tf/sales?item=Fountain%20of%20Delight%20Taunt:%20The%20High%20Five!&at=2025-02-14T03:48:06.081Z - labelled as 13 keys

Untraceable. Appears to have been bought as a gift for the current owner, has their gift tag on it.

#6

https://backpack.tf/profiles/76561198057426484#!/compare/1732320000/1732665600

https://backpack.tf/profiles/76561198095674881#!/compare/1723852800/1738972800

https://backpack.tf/item/1798928543

Untraceable

#7

https://backpack.tf/profiles/76561198311498888#!/compare/1733011200/1733097600

https://backpack.tf/profiles/76561198055844175#!/compare/1733011200/1733270400

https://backpack.tf/item/1486590908

Untraceable

#8

https://backpack.tf/profiles/76561198082401774#!/compare/1737504000/1737590400

https://backpack.tf/profiles/76561197963500354#!/compare/1737417600/1738108800

https://backpack.tf/item/15256111071

Untraceable

https://backpack.tf/item/2178665478 - marketplace

Marketplace Sales:

https://marketplace.tf/items/tf2/167;5;u3005

$28, Jan 17th, 24th, Feb 6th

https://backpack.tf/item/5554671747 - one of the January ones, can’t find the other two

https://marketplace.tf/items/tf2/5021;6 - keys were:

$1.78, Jan 17th

$1.75, Jan 24th

$1.81, Feb 6th

28/1.78 = 15.73, rounds to 16 keys

28/1.75 = 16

28/1.81 = 15.47, rounds to 15 keys

Sellers:

https://i.imgur.com/68BXkCU.png

https://backpack.tf/item/15157652879 - 15 keys

https://backpack.tf/item/15256111071 - marketplace

https://backpack.tf/item/597041063 - marketplace

https://backpack.tf/item/4436332476 - marketplace

https://backpack.tf/item/6962343625 - marketplace

Sales at:

9 (2x)

11

14

15 (marketplace)

16 (marketplace, 2x)

With a seller at 15, and the lack of pure sales at that price, I’m going to be excluding 15+ from the range.

Taking 9-14 keys.