Sale 1:

https://backpack.tf/profiles/76561198259819412#!/compare/1585180800/1585267200

https://backpack.tf/profiles/76561198343510066#!/compare/1585267200/1585353600

Sold for Steaming Baker + ~1 key in sweets

use there

Sale 2:

https://backpack.tf/profiles/76561198343510066#!/compare/1586563200/1586649600

https://backpack.tf/profiles/76561198080179568#!/compare/1586563200/1586649600

QS

sale 3:

https://backpack.tf/profiles/76561198080179568#!/compare/1587254400/1587340800

https://backpack.tf/profiles/76561198319462978#!/compare/1585612800/1587340800

Untrace

sale 4:

https://backpack.tf/profiles/76561198326620513#!/compare/1584403200/1584489600

https://backpack.tf/profiles/76561198057368586#!/compare/1584403200/1584489600

Sold for Strange Smoking Wet Works

use there, few sales

sale 5:

https://backpack.tf/profiles/76561198057368586#!/compare/1584403200/1584489600

https://backpack.tf/profiles/76561198176125115#!/compare/1584403200/1584489600

Sold for CPS Burglerre + ~0.5 keys in sweets

burglerre Mini:

https://backpack.tf/suggestion/5ea07e54290dd1566a18d42e

Suggestion for 8.5 keys

Total is 9 keys

Sale 6:

https://backpack.tf/profiles/76561198176125115#!/compare/1584489600/1584576000

https://backpack.tf/profiles/76561198183751979#!/compare/1581292800/1584921600

Untrace

sale 7:

https://backpack.tf/profiles/76561198304302520#!/compare/1581120000/1581206400

https://backpack.tf/profiles/76561198450078943#!/compare/1580860800/1581206400

Sold for DBD Puffy

Puffy Mini:

https://backpack.tf/suggestion/5ea07d34561b9670161f744b

Suggestion for 12 keys

Sale 8:

https://backpack.tf/profiles/76561198450078943#!/compare/1584144000/1584662400

https://backpack.tf/profiles/76561198037993261#!/compare/1584230400/1584403200

Sold for Miami Topi

use there

Sale 9:

https://backpack.tf/profiles/76561198037993261#!/compare/1584489600/1584921600

https://backpack.tf/profiles/76561198332101050#!/compare/1584316800/1584921600

Untrace

sale 10:

https://backpack.tf/profiles/76561198332101050#!/compare/1585958400/1586390400

https://backpack.tf/profiles/76561198054136616#!/compare/1586217600/1586390400

Sold for ~10 keys in sweets

Sale 11:

https://backpack.tf/profiles/76561198054136616#!/compare/1586476800/1586563200

https://backpack.tf/profiles/76561198042530923#!/compare/1586304000/1586563200

Bulk

Sale 12:

https://backpack.tf/profiles/76561198323995174#!/compare/1579737600/1581552000

https://backpack.tf/profiles/76561198125791160#!/compare/1581465600/1581552000

Bulk

Sale 13:

https://backpack.tf/profiles/76561198125791160#!/compare/1582243200/1582329600

https://backpack.tf/profiles/76561198310091805#!/compare/1581724800/1582329600

Sold for 14 keys

sale 14:

https://backpack.tf/profiles/76561198310091805#!/compare/1586131200/1586217600

https://backpack.tf/profiles/76561198305494036#!/compare/1586131200/1586217600

QS(?)

Sale 15 - 17:

https://marketplace.tf/items/tf2/30135;5;u62

$21.99 / $1.73 = 12.71 keys

$20.99 / $1.72 = 12.20 keys <--- https://backpack.tf/item/7955793447

$26.99 / $1.77 = 15.25 keys

total sales @:

9, 10, 12, 12, 13, 14, 15 keys

buyers up to 8 keys,

months unsold at 14 keys,

aging seller at 13 keys,

calling 14 high,

9 low,

taking 10 - 13 keys.