Sale 1:

https://backpack.tf/profiles/76561198832862549#!/compare/1624579200/1624838400

https://backpack.tf/profiles/76561198263236870#!/compare/1624665600/1624752000

Untrace.

Sale 2:

https://backpack.tf/profiles/76561198263236870#!/compare/1624752000/1624838400

https://backpack.tf/profiles/76561198832862549#!/compare/1624579200/1624838400

Untrace.

Sale 3:

https://backpack.tf/profiles/76561198832862549#!/compare/1625961600/1626134400

https://backpack.tf/profiles/76561198146080783#!/compare/1626048000/1626134400

= 28 Keys. (Bellow buyers)

Sale 4:

https://backpack.tf/profiles/76561198146080783#!/compare/1627430400/1627516800

https://backpack.tf/profiles/76561198049921198#!/compare/1627516800/1627603200

Sold with 10 keys for Strange Molten Mallard Teutonic Toque - No mini

Sale 5:

https://backpack.tf/profiles/76561198049921198#!/compare/1628640000/1628726400

https://backpack.tf/profiles/76561198118922746#!/compare/1628640000/1628726400

Bulk.

Sale 6:

https://backpack.tf/profiles/76561198118922746#!/compare/1628985600/1629331200

https://backpack.tf/profiles/76561198063407803#!/compare/1629072000/1629331200

Sold for Strange Damascus & Mahogany War Paint (Factory New) (35k) + 5 keys.

= 40 Keys.

Strange Damascus & Mahogany War Paint (Factory New) Mini:

https://backpack.tf/suggestion/61300ca44ee98f550b6a482c

Sale 7:

https://marketplace.tf/items/tf2/30069;5;u110 - Sep 15

$64.99 / $1.84 = 35.32 keys

= 35 Keys.

Going with 35-40 keys.