https://backpack.tf/item/14023207575

https://backpack.tf/profiles/76561198021771036#!/compare/1731110400/1736467200

https://backpack.tf/profiles/76561199572563573#!/compare/1737676800/1737936000

Untraceable

https://backpack.tf/profiles/76561199572563573#!/compare/1737936000/1738108800

https://backpack.tf/profiles/76561198142431919#!/compare/1737763200/1737936000

Looks to be ~23 keys from buyer's side (~3 keys from Taunts dumped that day, received ref matches)

https://backpack.tf/profiles/76561198142431919#!/compare/1738108800/1738368000

https://backpack.tf/profiles/76561198139391646#!/compare/1738281600/1738368000

Bought alongside Spectral Fire Triboniophorus Gentlemannus, value from open suggestion suggests this is bulk (Frigid potentially valued around ~20 keys)

https://backpack.tf/profiles/76561198139391646#!/compare/1738368000/1738540800

https://backpack.tf/profiles/76561199564942025#!/compare/1738454400/1738540800

Dumped to STN, 24 keys on seller's side but keys don't match (potentially dumped by separate buyer afterwards)

https://backpack.tf/item/14187178154

Untraceable

https://backpack.tf/item/14645951270

https://backpack.tf/profiles/76561198044557428#!/compare/1736899200/1738627200

https://backpack.tf/profiles/76561198014914678#!/compare/1737504000/1737676800

Looks like dump to bot, 17 keys match

https://backpack.tf/item/13910627262

https://backpack.tf/profiles/76561198066510321#!/compare/1731628800/1731974400

https://backpack.tf/profiles/76561198349848918#!/compare/1731888000/1731974400

Dump to bot for 19 keys

https://backpack.tf/profiles/76561198349848918#!/compare/1737417600/1737504000

https://backpack.tf/profiles/76561198082401774#!/compare/1737417600/1737504000

https://next.backpack.tf/classifieds/snapshots/Frosty%20Flavours%20Frigid%20Fashion/679146577da36ea525056558 2134.16/76.22 = 28 keys

Untraceable, but snapshot suggests 28 keys (note lower seller at 1829.28/76.22 = 24 keys)

https://backpack.tf/profiles/76561198082401774#!/compare/1737936000/1738022400

https://backpack.tf/profiles/76561199536459741#!/compare/1738108800/1738195200

https://next.backpack.tf/classifieds/snapshots/Frosty%20Flavours%20Frigid%20Fashion/6798bf2dfcbe1601cf0b8ed4 1,832.05/76.22 = ~24 keys

Untraceable dump to bot, snapshot suggests ~24 keys (later transferred to bot owner)

https://backpack.tf/profiles/76561199069442401#!/compare/1738108800/1738368000

?

https://marketplace.tf/items/tf2/31421;5;u315

https://backpack.tf/item/14127402525

Jan 16, $69.99/1.78 = 39.32 keys

Sales

17

19

23

39

https://steamcommunity.com/market/listings/440/Unusual%20Frigid%20Fashion?filter=Frosty+Flavours https://imgur.com/a/0x7ZsrU - Seller at ~34 keys

https://stntrading.eu/item/tf2/Unusual+Frosty+Flavours+Frigid+Fashion https://imgur.com/a/qo6x9hc - Seller at ~27 keys

https://imgur.com/a/pQyYl3o

https://backpack.tf/item/14645951270 - 30 keys

https://backpack.tf/item/14643077858 - $54.99

https://backpack.tf/item/13892628912 - $69.99

Excluding high sales and dumps and going with 23 flat (additional dumps support a lower value here).