Sale 1:

https://backpack.tf/profiles/76561198131633162#!/compare/1586390400/1586822400

https://backpack.tf/profiles/76561198091502579#!/compare/1586649600/1586736000

Sold for 9 keys

sale 2:

https://backpack.tf/profiles/76561198080179568#!/compare/1586649600/1586736000

https://backpack.tf/profiles/76561198091502579#!/compare/1586649600/1586736000

Sold for ~9.5 keys

Sale 3:

https://backpack.tf/profiles/76561198173238019#!/compare/1583625600/1585267200

https://backpack.tf/profiles/76561198797950362#!/compare/1584576000/1585094400

Untrace

Sale 4:

https://backpack.tf/profiles/76561198797950362#!/compare/1585699200/1585872000

https://backpack.tf/profiles/76561198048851745#!/compare/1585785600/1585872000

Bulk

sale 5:

https://backpack.tf/profiles/76561198048851745#!/compare/1586390400/1586476800

https://backpack.tf/profiles/76561198850274253#!/compare/1586563200/1586649600

QS

sale 6:

https://backpack.tf/profiles/76561198850274253#!/compare/1586649600/1586736000

https://backpack.tf/profiles/76561198091502579#!/compare/1586649600/1586736000

Untrace, probably for ~9 keys.

sale 7:

https://backpack.tf/profiles/76561198981536505#!/compare/1585785600/1586044800

https://backpack.tf/profiles/76561198118359997#!/compare/1585958400/1586044800

Sold for C9 Pirate + negligible sweets

use there

sale 8:

https://backpack.tf/profiles/76561198258595884#!/compare/1586563200/1586736000

https://backpack.tf/profiles/76561198091502579#!/compare/1586563200/1586649600

Sold for ~8.5 keys

Sale 9:

https://backpack.tf/profiles/76561198075617654#!/compare/1581638400/1581724800

https://backpack.tf/profiles/76561198086749028#!/compare/1581638400/1581724800

Bulk

sale 10:

https://backpack.tf/profiles/76561198086749028#!/compare/1581811200/1581897600

https://backpack.tf/profiles/76561198811738907#!/compare/1581811200/1581984000

Sold for Aussie Knife(~16)

Sale 11:

https://backpack.tf/profiles/76561198811738907#!/compare/1582934400/1583193600

https://backpack.tf/profiles/76561198056974324#!/compare/1583107200/1583193600

Sold with negligible sweets for ST Carlton + ~2 keys in sweets

low by sellers on Carlton

Sale 12:

https://backpack.tf/profiles/76561198056974324#!/compare/1583193600/1583280000

https://backpack.tf/profiles/76561198053869607#!/compare/1583193600/1583280000

Bulk

Sale 13:

https://backpack.tf/profiles/76561198053869607#!/compare/1583193600/1583280000

https://backpack.tf/profiles/76561198112817599#!/compare/1583193600/1583280000

Sold for Miami Guad + ~0.5 keys in sweets

use there

Sale 14:

https://backpack.tf/profiles/76561198112817599#!/compare/1583193600/1583280000

https://backpack.tf/profiles/76561198011321852#!/compare/1583193600/1583280000

Sold with ~1 key in sweets for Bubbling Drill

use there

Sale 15:

https://backpack.tf/profiles/76561198011321852#!/compare/1586563200/1586649600

https://backpack.tf/profiles/76561198091502579#!/compare/1586563200/1586649600

Sold for 12 keys

sale 16:

https://marketplace.tf/items/tf2/97;5;u57

24.99 / 1.79 = 13.96 keys

total sales @:

8.5, 9, 9.5, 12, 14, 16 keys

buyers up to ~7.5 keys,

seller at 16 keys,

calling 16 high,

taking 9 - 14 keys.