Sale 1:

Sold for Photons Bumble Beenie (64) + 11 keys

Seller: https://backpack.tf/profiles/76561198292336517#!/compare/1600992000/1601078400

Buyer: https://backpack.tf/profiles/76561198010637145#!/compare/1600905600/1600992000

https://backpack.tf/item/2267670262

https://bot.tf/stats/listings/4WXD272N - B/O of 80

75 keys

Sale 2: (dupe)

Sold for 75 keys

Seller: https://backpack.tf/profiles/76561198236425506#!/compare/1600300800/1600387200

Buyer: https://backpack.tf/profiles/76561198072465094#!/compare/1599091200/1600992000

https://backpack.tf/item/534675794

75 keys

Sale 3:

Sold with 10 keys for Circling TF Logo Yellow Belt (72.5)

Seller: https://backpack.tf/profiles/76561198058323007#!/compare/1600560000/1600646400

Buyer: https://backpack.tf/profiles/76561198057897812#!/compare/1600300800/1600560000

https://backpack.tf/item/2267670262

63 keys

Sale 4:

Sold for 59 keys

Seller: https://backpack.tf/profiles/76561198195933333#!/compare/1598054400/1598140800

Buyer: https://backpack.tf/profiles/76561198058323007#!/compare/1598313600/1598486400

https://backpack.tf/item/2267670262

59 keys

Sale 5: (dupe)

Sold for 55 keys

Seller: https://backpack.tf/profiles/76561198171058391#!/compare/1594252800/1594339200

Buyer: https://backpack.tf/profiles/76561198070697329#!/compare/1594252800/1594339200

https://backpack.tf/item/534675794

55 keys

Sale 6:

Sold for Death at Dusk Fed-Fightin' Fedora + 2 keys

Seller: https://backpack.tf/profiles/76561198057897812#!/compare/1600732800/1600819200

Buyer: https://backpack.tf/profiles/76561198292336517#!/compare/1600732800/1600819200

https://backpack.tf/item/2267670262

https://bot.tf/stats/listings/4665PDZ0 - B/O of 70

Will fit in the range, even if it doesn't cap.

Other Sales:

https://backpack.tf/item/2267670262 (#1)

https://backpack.tf/item/534675794 (#2)

#1

Bulk for Beams Mohawk

https://backpack.tf/profiles/76561198121899381#!/compare/1598140800/1598486400

https://backpack.tf/profiles/76561198195933333#!/compare/1598054400/1598140800

#2

Untraceable

https://backpack.tf/profiles/76561198070697329#!/compare/1594684800/1595376000

https://backpack.tf/profiles/76561198236425506#!/compare/1594684800/1596067200

Sellers:

https://i.imgur.com/6DwQ00V.png

https://backpack.tf/item/534675794 - 83, duped

https://backpack.tf/item/2267670262 - 85

https://backpack.tf/item/1190871437 - 85

https://backpack.tf/item/534675794 - 85, duped

Sales at:

55

59

63

75 (2x)

And another sale that'll end up being between 63-70.

Buyers up to ~60 keys, excluding anything lower.

Taking 63-75.