Month 1 https://gladiator.tf/sales?item=Terror-Watt%20Throttlehead&at=2022-12-07T21:31:31.175Z

https://backpack.tf/item/12069704894

3 @ 7 keys 26.11 ref

1 @ 9 keys

Month 2 https://gladiator.tf/sales?item=Terror-Watt%20Throttlehead&at=2022-11-07T21:31:31.175Z

https://backpack.tf/item/12110165485

1 @ 10 keys

Month 3 https://gladiator.tf/sales?item=Terror-Watt%20Throttlehead&at=2022-10-07T21:31:31.175Z

https://backpack.tf/item/12110165485

1 @ 8 keys 1 ref

1 @ 10 keys

https://marketplace.tf/items/tf2/31282;5;u57

$27.99/1.97 = 14.21 keys

https://mannco.store/item/440-terror-watt-unusual-throttlehead

$15.59/1.75 = 8.91 keys

https://backpack.tf/profiles/76561198850274253#!/compare/1667520000/1667606400

https://backpack.tf/profiles/76561198368296505#!/compare/1667347200/1667779200

https://gladiator.tf/time-machine?item=Terror-Watt%20Throttlehead&at=2022-11-05T09:01:11.000Z

~10 keys

https://backpack.tf/profiles/76561198087911461#!/compare/1669852800/1670198400

https://backpack.tf/profiles/76561198208235537#!/compare/1669852800/1670198400

https://gladiator.tf/time-machine?item=Terror-Watt%20Throttlehead&at=2022-12-01T23:42:30.000Z

Bulk for Morning Glory Shooter's Sola Topi

https://backpack.tf/profiles/76561197970654243#!/compare/1664928000/1665619200

SCM, unknown amount

https://backpack.tf/profiles/76561197970654243#!/compare/1665619200/1666742400

https://backpack.tf/profiles/76561199111073161#!/compare/1665619200/1666742400

https://gladiator.tf/time-machine?item=Terror-Watt%20Throttlehead&at=2022-10-13T04:03:26.000Z

Dumped to QS.store for unknown amount, likely close to 7.5 keys given buyers at the time

https://backpack.tf/profiles/76561199111073161#!/compare/1667260800/1667347200

https://backpack.tf/profiles/76561198238762256#!/compare/1667347200/1667606400

https://gladiator.tf/time-machine?item=Terror-Watt%20Throttlehead&at=2022-11-02T19:53:01.000Z

Probably ~10 keys as listed, buyer's compare supports

https://backpack.tf/profiles/76561198798970994#!/compare/1667520000/1667952000

https://backpack.tf/profiles/76561197992703391#!/compare/1667865600/1667952000

https://gladiator.tf/time-machine?item=Terror-Watt%20Throttlehead&at=2022-11-09T06:35:45.000Z

Untrace

https://backpack.tf/profiles/76561197992703391#!/compare/1668816000/1668902400

https://backpack.tf/profiles/76561199102826283#!/compare/1668816000/1668902400

https://gladiator.tf/time-machine?item=Terror-Watt%20Throttlehead&at=2022-11-19T18:05:20.000Z

Buyer's compare suggests this sale was ~12 keys, but much lower sellers at the time suggest this would be high. It was also later dumped for ~7.5 keys to a Gladiator bot.

Sales:

7.5

7.5

7.5

7.5?

8

9

9

10

10

10

10

12?

14

https://gladiator.tf/time-machine?item=Terror-Watt%20Throttlehead&at=2022-12-07T21:46:15.364Z

Excluding 14 given it's much higher than sellers. 12 is also uncertain and higher than previous sellers, so excluding that too. Going to exclude sales at 7.5 to balance the range somewhat. Including 8 to compensate for all those lower dumps.

Taking 8 - 10 keys.