Marketplace Sales:

https://marketplace.tf/items/tf2/31211;5;u203

https://backpack.tf/item/12833599938 - Most likely the May 22nd one, appears to have been dumped to a bot afterwards.

Couldn’t find the other history.

$31.99, May 22nd & August 7th

https://marketplace.tf/items/tf2/5021;6 - keys were:

$1.94, May 22nd

$1.87, August 7th

31.99/1.94 = 16.49, rounds to 16 keys

31.99/1.87 = 17.107, rounds to 17 keys

Other Sales:

#1

https://backpack.tf/profiles/76561199564942025#!/compare/1752710400/1752796800

https://backpack.tf/profiles/76561198236985112#!/compare/1752796800/1753142400

https://backpack.tf/item/12833599938

Untraceable, 10 keys potentially match on the buyer’s end, with those keys going to a different STN bot.

#2

https://backpack.tf/profiles/76561199059698603#!/compare/1750896000/1750982400

https://backpack.tf/profiles/76561199140889982#!/compare/1704758400/1753315200

https://backpack.tf/item/10750114905

Untraceable

Sellers:

https://i.imgur.com/GzlrNby.png

https://backpack.tf/item/10868820743 - 18 keys

https://backpack.tf/item/15454539248 - ~18.1 keys

https://backpack.tf/item/14399480680 - 20 keys

https://backpack.tf/item/13073733671 - $31.99

https://backpack.tf/item/10846277215 - $31.99

https://backpack.tf/item/10926306898 - $31.99

Sales at:

16

17

16 re-sold to a bot, but it would be silly to exclude it as it’s lower than the other sale (technically, anyway), and it being dumped to a bot that has since re-sold suggests this should be lower than 17 flat anyway.

Taking 16-17 keys.