Item 1: https://backpack.tf/item/15262331459

Sale 1:

https://backpack.tf/profiles/76561198316831771#!/compare/1750118400/1750204800

https://backpack.tf/profiles/76561199002069249#!/compare/1750118400/1750204800

11 keys

Item 2: https://backpack.tf/item/15260665867

Sale 2:

https://backpack.tf/profiles/76561198106956828#!/compare/1747267200/1747353600

https://backpack.tf/profiles/76561199102451836#!/compare/1747267200/1747440000

8 keys to bot

Item 3: https://backpack.tf/item/15236411520

Sale 3:

https://backpack.tf/profiles/76561198025488062#!/compare/1752969600/1753228800

https://backpack.tf/profiles/76561199111073161#!/compare/1753142400/1753228800

Dumped to QSStore as bulk for Dazzling Constellations Lumbercap

Marketplace.tf: https://marketplace.tf/items/tf2/30767;5;u368

Sale 4:

Sold for $20.95 on May 2 2025

Keys were $1.92 (well that's the closest I can find on the graph) https://marketplace.tf/items/tf2/5021;6

20.95/1.92=10.91 ~11 keys

Sale 5:

Sold for $20.95 on May 27 2025

keys were $1.93 https://marketplace.tf/items/tf2/5021;6

20.95/1.93=10.85 ~11 keys

Sales:

11, 11, 11

Sellers:

BPTF - https://imgur.com/204Pp8F 11.49, 12, 15

MPTF - https://marketplace.tf/items/tf2/30767;5;u368 $59.99 (~30 keys)

STN - https://stntrading.eu/item/tf2/Unusual%20Ghosts%20of%20Smissmas%20Time%20Airdog None

SCM - https://steamcommunity.com/market/listings/440/Unusual%20Airdog?filter=Ghosts+of+Smissmas https://imgur.com/orbDi2A lowest is 37.27€ (~18 keys)

Going with 11 keys flat