Sale #1 - Untrace

https://backpack.tf/profiles/76561198360762316#!/compare/1546041600/1546214400

https://backpack.tf/profiles/76561198169445460#!/compare/1544745600/1548374400

Sale #2 - Untrace

https://backpack.tf/profiles/76561198363395191#!/compare/1547251200/1547337600

https://backpack.tf/profiles/76561198878607418#!/compare/1547251200/1547337600

Sale #3 - Sold With 1 Key + 21 ref + Cosmetic for smoking beret

https://backpack.tf/profiles/76561198362008411#!/compare/1547856000/1547942400

https://backpack.tf/profiles/76561198878607418#!/compare/1547856000/1547942400

Could not find a micro sale to use for the beret

Sale #4 - Untrace

https://backpack.tf/profiles/76561198362008411#!/compare/1548115200/1548201600

https://backpack.tf/profiles/76561198247905332#!/compare/1548115200/1548201600

Sale #5 - Sold with 2 ref sweet for duped stormy sultan

https://backpack.tf/profiles/76561198247905332#!/compare/1547683200/1548201600

https://backpack.tf/profiles/76561198140083209#!/compare/1548115200/1548201600

Taking 9 keys

Could not find a duped micro, a clean will do at this low value

9 keys 2 craft hats

https://backpack.tf/profiles/76561198118922746#!/compare/1551484800/1551571200

https://backpack.tf/profiles/76561198197686845#!/compare/1551398400/1551571200

Sale #6 - Untrace

https://backpack.tf/profiles/76561198140083209#!/compare/1548201600/1548288000

https://backpack.tf/profiles/76561198269636307#!/compare/1548201600/1548288000

Sale #7 - Bulk

https://backpack.tf/profiles/76561198086797398#!/compare/1548201600/1548288000

https://backpack.tf/profiles/76561198269636307#!/compare/1548201600/1548288000

Sale #8 - 8 keys

https://backpack.tf/profiles/76561198086797398#!/compare/1548374400/1548547200

https://backpack.tf/profiles/76561198801236963#!/compare/1548288000/1548374400

Sale #9 - 8 keys 20 ref

https://backpack.tf/profiles/76561198102298597#!/compare/1548288000/1548374400

https://backpack.tf/profiles/76561198801236963#!/compare/1548374400/1548547200

Sale #10 - 8 keys

https://backpack.tf/profiles/76561198102298597#!/compare/1548460800/1548547200

https://backpack.tf/profiles/76561198858312714#!/compare/1548374400/1548460800

Sale #11 - 8 keys

https://backpack.tf/profiles/76561198858312714#!/compare/1548460800/1548547200

https://backpack.tf/profiles/76561198183634774#!/compare/1548460800/1548547200

Sale #12 - 8 keys 10 ref

https://backpack.tf/profiles/76561198183634774#!/compare/1548720000/1548806400

https://backpack.tf/profiles/76561198021055079#!/compare/1548720000/1548806400

Sale #13 - Untrace

https://backpack.tf/profiles/76561198021055079#!/compare/1549584000/1549670400

https://backpack.tf/profiles/76561198056985695#!/compare/1549584000/1549670400

Sale #14 - Sold With 1 Key + 18 ref + 12 ref skin for a bliz Connoissenur

https://backpack.tf/profiles/76561198061275415#!/compare/1549584000/1549670400

https://backpack.tf/profiles/76561198056985695#!/compare/1549584000/1549670400

Taking 13 - 1 - 0.64 = 11.36, rounded to 11 keys

Sale #15 - Quicksold to Zol

https://backpack.tf/profiles/76561198061275415#!/compare/1549670400/1549756800

https://backpack.tf/profiles/76561198337734785#!/compare/1549670400/1549756800

Sale #16 - Untrace

https://backpack.tf/profiles/76561198337734785#!/compare/1550880000/1550966400

https://backpack.tf/profiles/76561198443489337#!/compare/1550880000/1550966400

Sale #17 - 8 keys

https://backpack.tf/profiles/76561198443489337#!/compare/1551139200/1551225600

https://backpack.tf/profiles/76561198363395191#!/compare/1551139200/1551225600

Sale #18 - Untrace

https://backpack.tf/profiles/76561198363395191#!/compare/1547251200/1547337600

https://backpack.tf/profiles/76561198152010204#!/compare/1547164800/1547337600

Sale #19 - sold with 6 keys amd a 20 ref weapon for a SS Norseman

https://backpack.tf/profiles/76561198152010204#!/compare/1547683200/1547769600

https://backpack.tf/profiles/76561198448547131#!/compare/1547596800/1547769600

Taking - 21 - 6 - 0.45 = 15.55 = 16 keys

Norse Micro - 21 keys

https://backpack.tf/profiles/76561198152010204#!/compare/1547424000/1547683200

Sale #20 - Untrace

https://backpack.tf/profiles/76561198448547131#!/compare/1549670400/1550016000

https://backpack.tf/profiles/76561198305565390#!/compare/1546473600/1550361600

All Sales - 8,8,8,8,8,8,9,11,16

Taking 9 - 11 keys

Excluding 8 keys due to buyers - https://imgur.com/a/tX9egjh