Sale 1:

Sold for 10 keys

https://backpack.tf/profiles/76561198157964204#!/compare/1732579200/1732665600

https://backpack.tf/profiles/76561198191137318#!/compare/1732579200/1732665600

https://backpack.tf/item/2714552196

= 10 keys

Sale 2:

Sold for 8 keys

https://backpack.tf/profiles/76561198094365132#!/compare/1734220800/1734307200

https://backpack.tf/profiles/76561197967159739#!/compare/1734307200/1734393600

https://backpack.tf/item/2708285511

= 8 keys

Sale 3:

Sold with ~0.5 keys in metal for 7 keys

https://backpack.tf/profiles/76561198850274253#!/compare/1738800000/1738886400 - Near ID: 15431656187 (the unusual and metal here is unrelated)

https://backpack.tf/profiles/76561198071082937#!/compare/1738800000/1738886400

https://backpack.tf/item/2984970795

= 6.5 keys

Other Sales:

#1

https://backpack.tf/profiles/76561198078674541#!/compare/1736208000/1738627200

https://backpack.tf/profiles/76561198850274253#!/compare/1738454400/1738540800

https://backpack.tf/item/2984970795

Bulk

#2

https://backpack.tf/profiles/76561198034169519#!/compare/1734998400/1735171200

https://backpack.tf/profiles/76561199541052875#!/compare/1734134400/1735171200

https://backpack.tf/item/2742653819

Untraceable

#3

https://backpack.tf/profiles/76561199541052875#!/compare/1735171200/1735862400

https://backpack.tf/profiles/76561198398109897#!/compare/1733788800/1735430400

https://backpack.tf/item/2742653819

Most likely gambled

#4

https://backpack.tf/profiles/76561198398109897#!/compare/1735516800/1735689600

https://backpack.tf/profiles/76561198101829066#!/compare/1735603200/1735689600

https://backpack.tf/item/2742653819

Probably gambled again

#5

https://backpack.tf/profiles/76561198101829066#!/compare/1735689600/1735776000

https://backpack.tf/profiles/76561199082971157#!/compare/1735689600/1735776000

https://backpack.tf/item/2742653819

Untraceable

#6

https://backpack.tf/profiles/76561197979099964#!/compare/1734048000/1734480000

https://backpack.tf/profiles/76561198094365132#!/compare/1734134400/1734220800

https://backpack.tf/item/2708285511

Untraceable

Marketplace Sales:

https://marketplace.tf/items/tf2/1111;5;u3183

https://backpack.tf/item/15027510887 - December 20th

https://backpack.tf/item/15104884520 - December 28th

$17.99, December 20th

$29.99, December 28th

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

$1.75, December 20th

$1.80, December 28th

17.99/1.75 = 10.28, rounds to 10.5 keys

29.99/1.8 = 16.661, rounds to 16.5 keys

Sellers:

https://i.imgur.com/qw7R9pb.png

https://backpack.tf/item/2984970795 - ~8.85 keys

https://backpack.tf/item/2742653819 - marketplace

Sales at:

6.5

8

10

10.5 (marketplace)

16.5 (marketplace)

Seller at ~8.85, don’t want to stray too far from that. 10 is a pure sale, so I’ll keep that in the range, but I’ll knock out the two marketplace sales.

Taking 6.5-10 keys.