Sale 1:

https://backpack.tf/profiles/76561198211780469#!/compare/1631836800/1632182400

https://backpack.tf/profiles/76561198043444428#!/compare/1632096000/1632182400

= 100 Keys.

Sale 2:

https://backpack.tf/profiles/76561198043444428#!/compare/1632700800/1632787200

https://backpack.tf/profiles/76561198053912513#!/compare/1632096000/1632787200

= 72 Keys. (QS)

Sale 3:

https://backpack.tf/profiles/76561198229066336#!/compare/1630540800/1630627200

https://backpack.tf/profiles/76561198095022965#!/compare/1630540800/1630627200

Bulk.

Sale 4:

https://backpack.tf/profiles/76561198095022965#!/compare/1636761600/1636848000

https://backpack.tf/profiles/76561198068897996#!/compare/1636761600/1636848000

Master Throne Crimson: https://backpack.tf/suggestion/61a8aac98a80747ec15fd60f#comment-61a912cb3db5ab6bfe069617

Sold mine for 135 keys: https://i.imgur.com/VBrrVah.gif

= 135 Keys.

Sale 5:

https://marketplace.tf/items/tf2/30180;5;u14 - Nov 7

$219.99 / $1.88 = 117.02 keys

= 117 Keys.

Master Throne Crimson: https://backpack.tf/suggestion/61a9b0f6d24dff58be074783#comment-61a9b1aaaf4b8b4c231e5b4e

If the buyer sold it for even lower than bought for (100), then this suggests that 117 will be high as a low end, id include 100 in the range

Xergoyf: https://backpack.tf/suggestion/61a9fdafbfbd4b3bd6160361#comment-61c9186426c11a592f099e95

72 was likely more than 72, buy orders were at 94 + b/o was 120 https://gladiator.tf/listings/6151c6055ff02e12da6712f6.

Sale will be likely to fit range tho.

https://backpack.tf/item/8052799749

https://gladiator.tf/sales?item=Scorching%20Flames%20Pirate%20Bandana&at=2021-12-27T01:31:39.952Z

https://backpack.tf/item/8052799749

135 dumped for ~86 to a bot. Also a 99 buy order sale that I can't find the history for.

https://backpack.tf/profiles/76561199102407070#!/compare/1640044800/1640131200 bot re-sold for 115

https://backpack.tf/profiles/76561198049980958#!/compare/1640217600/1640390400 untrace, likely to a private inv.

I would exclude 135 and go 100 - 115 (rounded) here.