Shuffle Spy:

https://backpack.tf/profiles/76561198088636158#!/compare/1641427200/1641513600 - 20 Keys

https://backpack.tf/profiles/76561198119568075#!/compare/1639958400/1640044800 - Sale 2 was 22 Keys; the buyer gifted it to the current owner

20 to 22 would work here.

https://backpack.tf/item/1073718192

https://backpack.tf/profiles/76561197997811299#!/compare/1634256000/1634342400

https://backpack.tf/profiles/76561198453530349#!/compare/1634256000/1634342400

~21k

https://backpack.tf/profiles/76561198453530349#!/compare/1639958400/1640044800

https://backpack.tf/profiles/76561198094814044#!/compare/1638748800/1640563200

https://gladiator.tf/listings/61c12e4f436fc38a6f5c44f1

untrace, snapshot suggests ~22k was 22 as stated by Shuffle

https://backpack.tf/item/280849444

https://backpack.tf/profiles/76561199013641176#!/compare/1636848000/1639699200

https://backpack.tf/profiles/76561199125443371#!/compare/1636761600/1636848000

https://gladiator.tf/sales?item=Circling%20Peace%20Sign%20Napper%27s%20Respite&at=2021-11-14T21:54:32.779Z ~20k listed

on nov 14 (day of sale), seller bought a KaW bone dome (~14.5k https://gladiator.tf/listings/6190537545f25e6749f64e00) + Taunt: The Schadenfreude (~2.5k https://gladiator.tf/listings/619058da2fd5f64ef1e5a732) + Taunt: Scorcher's Solo (~2.3k https://gladiator.tf/listings/619054f1ae8f851cd8d8d71d) and the remaining ref left over adds up to the ~20k listed, taking 20 here.

20-22.