Needed a mini for it, decided to do a full suggestion

Proof:

SOlds:

https://marketplace.tf/items/30845;5;u3003 ~ sold for 13 keys on feb 16

Sold #2:

https://backpack.tf/profiles/76561198354477339#!/compare/1517443200/1517875200 ~ sold for a stormy storm helmet ~ 12

Sold #3:

https://backpack.tf/profiles/76561198048008254#!/compare/1518652800/1518739200 ~ sold for 10 pure

Sold #4:

https://backpack.tf/profiles/76561198064367685#!/compare/1522540800/1522627200 ~ sold for a balloonihoodie ~ 5 (open sugg and sellers) + 6 keys = 11

Sold #5:

https://backpack.tf/profiles/76561198799075257#!/compare/1521849600/1522022400 ~ sold for 9 keys 6 ref (most likely quickbuyer)

Sold #6:

https://backpack.tf/profiles/76561198013011182#!/compare/1521244800/1521331200 ~ sold for a potassium bonnet + 1 key ~ 11.5 (12)

Sold #7:

https://backpack.tf/profiles/76561198048704879#!/compare/1518566400/1518652800 ~ sold for a soviet strongarm (open sugg at 11.5) + 1 key = 12.5 (13)

Sold #8:

https://backpack.tf/profiles/76561198390581262#!/compare/1520121600/1520294400 ~ sold for a tf logo hard counter (10) but unsold at 8.43 for 7 days... outlier if using seller

Sold #9:

https://backpack.tf/profiles/76561198036574824#!/compare/1519862400/1519948800 ~ about 10 keys in items

Sold #10:

https://backpack.tf/profiles/76561198163191051#!/compare/1519084800/1519171200 ~ An unusual selling for 16 keys? ... rip

https://backpack.tf/profiles/76561198036574824#!/compare/1519084800/1519171200 ~ or 14 pure + 2 keys in items?

Sold #11:

https://backpack.tf/profiles/76561198256865969#!/compare/1518998400/1519084800 ~ 11 pure

Sold #12:

https://backpack.tf/profiles/76561198022636756#!/compare/1518566400/1518652800 ~ sold for 12 keys + 11 ref