Sale 1:

https://backpack.tf/profiles/76561198796090306#!/compare/1583020800/1583107200

https://backpack.tf/profiles/76561198002757046#!/compare/1582934400/1583020800

QS

sale 2:

https://backpack.tf/profiles/76561198002757046#!/compare/1583798400/1583884800

https://backpack.tf/profiles/76561198864524928#!/compare/1585094400/1585353600

Untrace

Sale 3:

https://backpack.tf/profiles/76561198864524928#!/compare/1585612800/1586476800

https://backpack.tf/profiles/76561198341171690#!/compare/1585526400/1585612800

QS

sale 4:

https://backpack.tf/profiles/76561198244171886#!/compare/1584489600/1584835200

https://backpack.tf/profiles/76561198308772967#!/compare/1584316800/1584489600

QS

sale 5:

https://backpack.tf/profiles/76561198053338019#!/compare/1581552000/1581897600

https://backpack.tf/profiles/76561198886850124#!/compare/1582761600/1582848000

Untrace

sale 6:

https://backpack.tf/profiles/76561198052246700#!/compare/1582848000/1582934400

https://backpack.tf/profiles/76561198104130890#!/compare/1581292800/1583452800

SCM

sale 7:

https://backpack.tf/profiles/76561198063756320#!/compare/1579910400/1580342400

https://backpack.tf/profiles/76561198323071283#!/compare/1580256000/1580342400

Sold for Miami Firewall

Firewall Mini:

https://backpack.tf/suggestion/5e9f75f2b78ecd19073bfac5

Suggestion for 12.5 keys

sale 8:

https://backpack.tf/profiles/76561198323071283#!/compare/1580342400/1580601600

https://backpack.tf/profiles/76561198359746121#!/compare/1580428800/1580515200

Untrace

sale 9:

https://backpack.tf/profiles/76561198359746121#!/compare/1581379200/1581465600

https://backpack.tf/profiles/76561198989899223#!/compare/1581465600/1581552000

Sold for Searing Airdog(9.5) + ~3.5 keys in sweets

Total is 13 keys

https://bot.tf/stats/listings/Y7D372RN

B/O of 13 keys

sale 10:

https://backpack.tf/profiles/76561198989899223#!/compare/1584403200/1584748800

https://backpack.tf/profiles/76561198846276257#!/compare/1584316800/1584576000

Untrace

sale 11:

https://backpack.tf/profiles/76561198846276257#!/compare/1584662400/1585267200

https://backpack.tf/profiles/76561198095022965#!/compare/1585180800/1585267200

Bulk

sale 12:

https://marketplace.tf/items/tf2/30977;5;u7

$20 / $1.75 = 11.43 keys

Total sales @:

11, 13, 13 keys

multiple sellers at 12 keys,

https://i.imgur.com/bjLIGhh.jpg

taking 11 - 13 keys, conserving around them.