Sale 1:

https://backpack.tf/profiles/76561198335893414#!/compare/1565913600/1566000000

https://backpack.tf/profiles/76561198407275390#!/compare/1566345600/1566432000

SCM

Sale 2:

https://backpack.tf/profiles/76561198056804742#!/compare/1567468800/1567555200

https://backpack.tf/profiles/76561198213025744#!/compare/1564358400/1568332800

Untrace (might be 15, but can't prove.)

Sale 3:

https://backpack.tf/profiles/76561198147174068#!/compare/1565913600/1566000000

https://backpack.tf/profiles/76561198171962935#!/compare/1566000000/1566086400

Sold for 15 keys

Sale 4:

https://backpack.tf/profiles/76561198045391661#!/compare/1566604800/1567036800

https://backpack.tf/profiles/76561198866566566#!/compare/1566432000/1566604800

Sold for Smoking Commander + 3 keys

Commander Mini:

https://backpack.tf/suggestion/5d7c69cfd38172762a472fbc

Suggestion for 10 keys

Total is 13 keys

https://bot.tf/stats/listings/MXQP55X8

B/O of 15 keys

Sale 5:

https://backpack.tf/profiles/76561198866566566#!/compare/1566604800/1566691200

https://backpack.tf/profiles/76561198146485226#!/compare/1564099200/1566691200

Sold with negligible sweets for 14 keys

Sale 6:

https://backpack.tf/profiles/76561198141451799#!/compare/1565913600/1566172800

https://backpack.tf/profiles/76561198026194410#!/compare/1566086400/1566172800

Sold for Roaring High Five

use there, ends up low.

Sale 7:

https://backpack.tf/profiles/76561198046140274#!/compare/1565827200/1568419200

https://backpack.tf/profiles/76561198208966525#!/compare/1556841600/1566691200

SCM

Sale 8:

https://backpack.tf/profiles/76561198208966525#!/compare/1567296000/1567555200

https://backpack.tf/profiles/76561198271886589#!/compare/1567296000/1568246400

SCM?

Sale 9:

https://backpack.tf/profiles/76561198227926284#!/compare/1564963200/1567036800

https://backpack.tf/profiles/76561198026129220#!/compare/1565827200/1565913600

Untrace

Sale 10, 11:

https://marketplace.tf/items/tf2/98;5;u61

$25.56 / $1.82 = 14.04 keys

$24.8 / $1.83 = 13.55 keys

Total sales @:

13, 13.55, 14, 14.04, 15 keys

Taking 13 - 15 keys