Sale 1:

https://backpack.tf/profiles/76561198002757046#!/compare/1581811200/1581897600

https://backpack.tf/profiles/76561198158120554#!/compare/1581811200/1581897600

sold for 8 keys

Sale 2:

https://backpack.tf/profiles/76561198158120554#!/compare/1581984000/1582070400

https://backpack.tf/profiles/76561198125162923#!/compare/1582070400/1582156800

Sold for ST Battin + 10 keys

Battin Mini:

https://backpack.tf/suggestion/5eac3f6c10878b111519635e

Suggestion for ~2.65 keys

Total is ~13 keys

https://bot.tf/stats/listings/Y5RX6PN2

B/O of 14 keys

sale 3:

https://backpack.tf/profiles/76561197997339757#!/compare/1583452800/1583539200

https://backpack.tf/profiles/76561198080783287#!/compare/1583452800/1583539200

Sold for Vivid Airdog

Airdog mini:

https://backpack.tf/suggestion/5eac3fddd7e59232032f5597

Suggestion for 12.5 keys

https://bot.tf/stats/listings/M17JJRVO

B/O of 10 keys, capping

Sale 4:

https://backpack.tf/profiles/76561198080783287#!/compare/1584144000/1584230400

https://backpack.tf/profiles/76561198044934255#!/compare/1584144000/1584316800

Untrace

sale 5, 6:

https://marketplace.tf/items/tf2/30866;5;u33

$14 / $1.72 = 8.14 keys

$23 / $1.69 = 13.61 keys

Total sales @:

8, 8, 10, 13, 14 keys

buyers up to ~7.5 keys,

calling 8 low,

taking 10 - 14 keys.