Mass unboxed mini time! Hooray!!!

Item 1: https://backpack.tf/item/15597644889

Sale 1: Sold alongside a Non-Craftable Unusual Taunt: Mannrobics Unusualifier for a Stormy Storm Caribbean Conqueror and 13 keys (used to price the Conq)

https://backpack.tf/profiles/76561198064850234#!/compare/1755302400/1755388800

https://backpack.tf/profiles/76561197975508167#!/compare/1755216000/1755302400

Item 2: https://backpack.tf/item/13178770794

Sale 1: Untrace (up until date-removed from buyers)

https://backpack.tf/profiles/76561198101575883#!/compare/1750809600/1757894400

https://backpack.tf/profiles/76561198311498888#!/compare/1750809600/1752278400

Item 3: https://backpack.tf/item/11996818962

Sale 1: Untrace

https://backpack.tf/profiles/76561198850121720#!/compare/1753574400/1753660800

https://backpack.tf/profiles/76561197984289499#!/compare/1753401600/1753660800

Sale 2: Dumped to bot for 14k 36.55 ref

https://backpack.tf/profiles/76561197984289499#!/compare/1754179200/1754265600

https://backpack.tf/profiles/76561198850121720#!/compare/1754179200/1754265600

Sale 3: Untrace

https://backpack.tf/profiles/76561198850121720#!/compare/1754697600/1754784000

https://backpack.tf/profiles/76561198150645469#!/compare/1753401600/1755043200

Item 4: https://backpack.tf/item/10953102679

Sale 1: Untrace

https://backpack.tf/profiles/76561198850178158#!/compare/1754524800/1754611200

https://backpack.tf/profiles/76561198215525679#!/compare/1754179200/1755043200

Item 5: https://backpack.tf/item/10792461752

Sale 1: 18k 32 ref

https://backpack.tf/profiles/76561198117053421#!/compare/1755388800/1755734400

https://backpack.tf/profiles/76561198283682411#!/compare/1755561600/1755648000

Item 6: https://backpack.tf/item/10790947588

Sale 1: 18k (can see the entire 5th/6th row of keys leaving buyer's side share history with seller, none other that I can find)

https://backpack.tf/profiles/76561198061633018#!/compare/1751673600/1751760000

https://backpack.tf/profiles/76561199389372563#!/compare/1751673600/1751760000

Marketplace sales:

https://marketplace.tf/items/tf2/31209;5;u192

Sales at $41.99 on Jul 12th, Aug 1st, Aug 18th, and Aug 19th

https://marketplace.tf/items/tf2/5021;6

Key prices for these days are $2.02, $1.9, $1.83, and $1.83

Jul 12th: $41.99 / $2.02 = 20.78k

Aug 1st: $41.99 / $1.90 = 22.1k

Aug 18th: $41.99 / $1.83 = 22.94k

Aug 19th: $41.99 / $1.83 = 22.94k

Sales at 14k 36.55 ref, 18k, 18k 32 ref, 20.78k, 22.1k, 22.94k, 22.94k

Classifieds link: https://imgur.com/a/s4gXZDz

Given that there's a 23 key listing unsold for a month, omitting the two sales at 22.94 keys seems fair, and that there's a freshly listed one at 22 keys, though the recency of this shouldn't discredit the sale at 22.1k. We can also omit the sale at 14k 36.55 ref as a dump, and buy orders have since moved up to 17.07 keys.

Lowest sale at 18 keys, and highest sale at 22.1 keys. Rounding 22.1 to 22 keys, and using 18-22k as the range.