History 1: https://backpack.tf/item/6895663084

60 keys:

https://backpack.tf/profiles/76561198019000176#!/compare/1628380800/1628467200

https://backpack.tf/profiles/76561198039737559#!/compare/1625788800/1631404800

History 2: https://backpack.tf/item/4369025057

mannco seller https://mannco.store/item/440-spooky-night-unusual-taunt-zoomin-broom

History 3: https://backpack.tf/item/4667897813

Sold to a quickbuyer for ~57 keys:

https://backpack.tf/profiles/76561198309899278#!/compare/1621814400/1628726400

https://backpack.tf/profiles/76561198124728984#!/compare/1626739200/1628726400

History 4: https://backpack.tf/item/4264237610

Sold for a Double Spelled All-Father:

https://backpack.tf/profiles/76561197989625577#!/compare/1628899200/1629504000

https://backpack.tf/profiles/76561198177872379#!/compare/1629417600/1629504000

[Other All Father sale is untraceable so excluding this sale:

https://backpack.tf/profiles/76561197989625577#!/compare/1632528000/1632787200]

https://marketplace.tf/items/tf2/30672;5;u3021

$200/1.82=109.89 ~110 keys, no buyout

History 5: https://backpack.tf/item/4294001563

75 keys:

https://backpack.tf/profiles/76561198125791160#!/compare/1625356800/1625443200

https://backpack.tf/profiles/76561198080932069#!/compare/1623888000/1626307200

https://mannco.store/item/440-spooky-night-unusual-taunt-zoomin-broom

$86/1.68=51.19 ~51 keys, unknown history

Sales at 51, 57, 60, 75, 110

51 and 57 are below buyers, 57 was a quicksell and 51 is very close to current Mannco buy orders, excluding both. (bp buy orders are ~58)

110 is Marketplace and is really far away from pure sales, excluding too.

Calling 51-57 low and 110 high, going with 60-75 keys