Sale #1:

Sold for a Morning Glory Conquistador

https://backpack.tf/profiles/76561198212650739#!/compare/1511568000/1511654400

Total: 50 keys

Sale #2:

Sold for 32 keys and 5 refined:

https://backpack.tf/profiles/76561198212650739#!/compare/1514937600/1515110400

Not using, quicksell

Sale #3:

https://backpack.tf/profiles/76561198149459336#!/compare/1515110400/1515196800

Sold for a Bubbling Drill and 25 keys

Caps at ~35 keys buyout:

https://imgur.com/a/bqvym (Credits to Shuffle Spy)

Not using, quicksell

Sale #4:

Sold with a Searing Plasma Waxy Wayfinder for Showstopper Taunt: Rock, Paper, Scissors and 8 keys:

https://backpack.tf/profiles/76561198154253412#!/compare/1511568000/1511654400

Not valid, taunt sale, would be too low

Three new recent sales:

https://backpack.tf/profiles/76561198164819613#!/compare/1515542400/1515628800

Untracable

https://backpack.tf/profiles/76561198042456905#!/compare/1515542400/1515628800

Bulk taunt sale?

https://backpack.tf/profiles/76561198149459336#!/compare/1515542400/1515628800

1:1 G.Fetti Coldsnap Cap