Sale 1:

https://backpack.tf/profiles/76561198839307425#!/compare/1590969600/1591056000

https://backpack.tf/profiles/76561198099006967#!/compare/1590796800/1590969600

Sold for 9 keys

sale 2:

https://backpack.tf/profiles/76561198099006967#!/compare/1591056000/1591747200

https://backpack.tf/profiles/76561198086291935#!/compare/1590278400/1591747200

Sold for 9 keys

sale 3:

https://backpack.tf/profiles/76561198274436445#!/compare/1587600000/1588723200

https://backpack.tf/profiles/76561198363395191#!/compare/1587600000/1587772800

QS

sale 4:

https://backpack.tf/profiles/76561198880361166#!/compare/1586217600/1586304000

https://backpack.tf/profiles/76561198246096512#!/compare/1585958400/1586217600

Untrace

Sale 5:

https://backpack.tf/profiles/76561198246096512#!/compare/1586217600/1586304000

https://backpack.tf/profiles/76561198841279602#!/compare/1586131200/1586217600

QS

sale 6:

https://backpack.tf/profiles/76561198841279602#!/compare/1589155200/1589241600

https://backpack.tf/profiles/76561198861970394#!/compare/1589414400/1589500800

Sold for 7 keys

sale 7:

https://backpack.tf/profiles/76561198861970394#!/compare/1589414400/1589500800

https://backpack.tf/profiles/76561198320408085#!/compare/1589155200/1589241600

Sold for CPs Airdog(8.75) + 1 key

Total is ~9 keys

https://bot.tf/stats/listings/466XD1WL

B/O of 10 keys

sale 8:

https://backpack.tf/profiles/76561198320408085#!/compare/1589414400/1589846400

https://backpack.tf/profiles/76561198811737080#!/compare/1589241600/1589414400

https://backpack.tf/profiles/76561198363395191#!/compare/1589328000/1589414400

Untrace then QS

sale 9:

https://backpack.tf/profiles/76561198212670497#!/compare/1585267200/1585353600

https://backpack.tf/profiles/76561199005564483#!/compare/1584230400/1585353600

https://backpack.tf/profiles/76561199017926833#!/compare/1585267200/1585353600

https://backpack.tf/profiles/76561198020673987#!/compare/1585180800/1585440000

https://backpack.tf/profiles/76561198850274253#!/compare/1586304000/1586390400

Untrace / qS

sale 10:

https://backpack.tf/profiles/76561198850274253#!/compare/1588723200/1588809600

https://backpack.tf/profiles/76561198386195044#!/compare/1588636800/1588809600

https://backpack.tf/profiles/76561198817887345#!/compare/1590796800/1591833600

Untrace

Sale 11:

https://backpack.tf/profiles/76561198817887345#!/compare/1591315200/1591401600

https://backpack.tf/profiles/76561198394965271#!/compare/1591315200/1591401600

Untrace

sale 12:

https://backpack.tf/profiles/76561198394965271#!/compare/1591488000/1591660800

https://backpack.tf/profiles/76561198967270497#!/compare/1591488000/1591574400

untrace

sale 13:

https://backpack.tf/profiles/76561198967270497#!/compare/1591488000/1591574400

https://backpack.tf/profiles/76561198104056646#!/compare/1591488000/1591574400

Bulk

sale 14:

https://backpack.tf/profiles/76561198104056646#!/compare/1591574400/1591660800

https://backpack.tf/profiles/76561199013290654#!/compare/1591574400/1591660800

Untrace

sale 15:

https://backpack.tf/profiles/76561198850274253#!/compare/1588723200/1588809600

https://backpack.tf/profiles/76561198850274253#!/compare/1588723200/1588809600

https://backpack.tf/profiles/76561198817887345#!/compare/1590796800/1591920000

Untrace

sale 16:

https://marketplace.tf/items/tf2/980;5;u59

$15.95 / $1.88 = 8.48 keys

$15.95 / $1.90 = 8.39 keys

Total sales @:

7, 8.5, 8.5, 9, 9, 9 keys

buyers up to ~7 keys,

seller for ~12 keys,

taking 8.5 - 9 keys.