https://backpack.tf/profiles/76561198196410274#!/compare/1611619200/1611792000

https://backpack.tf/profiles/76561199111082769#!/compare/1611619200/1611792000

untrace

https://backpack.tf/profiles/76561199111082769#!/compare/1611619200/1611705600

https://backpack.tf/profiles/76561198321499430#!/compare/1611705600/1611792000

sold for 14 keys + Aces High A Rather Festive Tree

current classies are at ~12-13 with mp sales at 12-13, https://marketplace.tf/items/tf2/341;5;u59

14+12.5= 26.5, rounding to 27 keys

https://backpack.tf/profiles/76561198215274576#!/compare/1611878400/1611964800

https://backpack.tf/profiles/76561198215274576#!/compare/1611878400/1611964800

untraceable, however I attached screenshots of the trade, sold for a massed flies shellmet + 16 keys

https://backpack.tf/suggestion/60159d0f24a27431891089c4 (Shellmet Massed Flies mini)

Massed Flies Shellmet Mini value at 10-13 keys, median of 11.5, 11.5 + 16 keys = 27.5 ~28 keys

https://backpack.tf/profiles/76561198045446179#!/compare/1606953600/1607040000

https://backpack.tf/profiles/76561198850178158#!/compare/1606867200/1607126400

it's untraceable, however I contacted the buyer, and he bought it for 31 keys (check imgur post for screenshot)

Imgur Post: https://imgur.com/a/R6ANlx7

In summary

Sales at 27,28, 31

taking 27-31 as the updated price

Thanks to strange and bptf discord for helping out! (and stonecold86 for providing the ss)