There's many other sales

https://backpack.tf/item/6817575922

https://backpack.tf/item/6817328214

https://backpack.tf/item/6807020547

https://backpack.tf/item/6773751722

https://backpack.tf/item/6766462325

https://backpack.tf/item/6745403732

https://backpack.tf/item/6744129828

https://backpack.tf/item/6743993224

Well, other recent sales will need to be checked, and there are plenty.

Few of the abovementioned sales:

Mallard outdoors (needs mini; sellers at 35, so that's definitely lower than this)

https://backpack.tf/profiles/76561198092271981#!/compare/1528588800/1528848000

aussie sniper + kaw djustice

http://www.tf2outpost.com/trade/29652881 Probably caps at 44

https://backpack.tf/profiles/76561198092271981#!/compare/1526774400/1527120000

Untraceable

https://backpack.tf/profiles/76561198441641928#!/compare/1525651200/1525824000

37 keys (were used to buy that sns)

https://backpack.tf/profiles/76561198031511899#!/compare/1526256000/1526342400

https://backpack.tf/profiles/76561198340736289#!/compare/1526169600/1526256000

Slumber kiss ~27

https://backpack.tf/profiles/76561198269559801#!/compare/1526083200/1526169600

23 keys + possibly something else resold for 15 (not sure tho)

https://backpack.tf/profiles/76561198157452762#!/compare/1526083200/1526169600

Can't trace

https://backpack.tf/profiles/76561198299093168#!/compare/1530403200/1530489600

Can't trace

https://backpack.tf/profiles/76561198139514203#!/compare/1530057600/1530316800

58 keys? seems odd given how many lower sellers we have and have been there

https://backpack.tf/profiles/76561198295454900#!/compare/1530057600/1530316800

40 keys

https://backpack.tf/profiles/76561198106233311#!/compare/1529193600/1529366400

Strange terror dogger + a few keys

https://backpack.tf/profiles/76561198062699673#!/compare/1528848000/1529020800

Feel free to look into these and fix this.