Here's the sales:

Bulk for Death by Disco Pullover, should be used for that

http://backpack.tf/profiles/76561198072173048#!/compare/1484524800/1484784000

Sold for 84 Keys, sold on December

http://backpack.tf/profiles/76561198076020691#!/compare/1482537600/1482624000

HolyHorsemann and HolyBusinessman are alts, which explains the history exchange.

Sold for 84 Keys, sold on december

http://backpack.tf/profiles/76561198045174236#!/compare/1481932800/1482019200

Bulk for Burning Texas and Smoking Pusher, should be used for the texas

http://backpack.tf/profiles/76561198050052801#!/compare/1485648000/1485734400

Bulk for C9 Banana, should be used for that

http://backpack.tf/profiles/76561197970548801#!/compare/1486684800/1486771200

Sold for a Demonflame Dragonborn and adds, should be used for the dragonborn

http://backpack.tf/profiles/76561198164445109#!/compare/1481068800/1481414400

Sold for a Cool FN Boomstick, should be used for that

http://backpack.tf/profiles/76561198163289648#!/compare/1481414400/1481673600

Sold for a Strange Cool BS Dahlia, should be used for that

http://backpack.tf/profiles/76561198236007746#!/compare/1481587200/1481673600

http://backpack.tf/profiles/76561198192602363#!/compare/1481587200/1481673600

Sold for 84 Keys, sold on december

http://backpack.tf/profiles/76561198192602363#!/compare/1482796800/1482883200

Every other sale I found was either untraceable or SCM.

I feel like it'd be unfair to use sales from a month ago when there's a very recent pure sale right here, as this is not an unusual. I'm going to accept this suggestion to give precedence to the pure sale that took place recently, as opposed to the older sales I found.

History comparison for OP's sale: https://backpack.tf/profiles/76561198047239660#!/compare/1486684800/1486944000