Resuggesting! Thanks for letting me know that I should exculde the mp.tf sale and for the information to back that up!

Might have sales one day outdated since I've been working on the suggestions for two days!

Micro for Purple Energy Yule Hog

https://marketplace.tf/items/tf2/174;5;u62

Marketplace.tf Sales

$29.99 / $1.93 = 15.54 keys

Sale #1

Sold 14 keys pure-

https://imgur.com/prPbx7T

https://backpack.tf/item/2534032995

Sales @ 14, 16

mp sale had a b/o of 14

https://bot.tf/stats/listings/4WXVDPRX - b/o of 14 (Neo)

https://backpack.tf/profiles/76561198130943883?time=1589241600 - not in inventory around time of sale.

Julia was selling one with a b/o of 14 around the same time, can't trace the sale tho

https://backpack.tf/profiles/76561198080179568#!/compare/1589241600/1589328000

Taking 14 flat.