Same here.

Sales

Sale 1: Sold for 80 keys

https://backpack.tf/profiles/76561198192602363#!/compare/1598486400/1598572800

https://backpack.tf/profiles/76561198310925535#!/compare/1598572800/1597881600

Sale 2: Sold with Flies Tyrannus (13 keys) for Sulphorous Cowl

https://backpack.tf/profiles/76561198079098551#!/compare/1597276800/1597536000

https://backpack.tf/profiles/76561198192602363#!/compare/1597449600/1597536000

Going to use for the Cowl, as the other sale is untraceable.

Sale 3: Sold for Ghastly Glasgow (48 keys)+ Strange Prof KS Aussie Black Box (Buyers around 20.34~) + Strange Prof KS Huntsman (Buyers up to 12.51)

https://backpack.tf/profiles/76561198342161127#!/compare/1591488000/1591574400

https://backpack.tf/profiles/76561198079098551#!/compare/1590883200/1591488000

81 keys~

Glasgow: https://backpack.tf/suggestion/5f4b450cd4a71b33312b3664

Black Box: https://gyazo.com/d770d2337c9f4383ea8ce9454c2576d5

The buyers above 20.34 are looking for, specific killstreaks

Huntsman: https://gyazo.com/7f33b0da2a49607db6022e4427ffb00f

The buyers above 12.51 are looking for, specific killstreaks, one is at 13.64, but that is higher than sellers.

Marketplace

https://marketplace.tf/items/tf2/306;5;u13

May

$126 on May 31 (126/1.91 = 66~)

https://manic.tf/keyprice/?at=2020-05-31

https://backpack.tf/item/8787079472

Classifieds

https://gyazo.com/e719f6573bf5560858d202c6153363fb

Summary

Sales at 80 and 81.

Marketplace sales at 66.

Conclusion

66 seems a bit lower than the other two sales, and a day or two away from being outdated.

Going with 80-81 here.