Sale 1:

https://backpack.tf/profiles/76561198087848782#!/compare/1567987200/1568160000

https://backpack.tf/profiles/76561198155110999#!/compare/1568073600/1568160000

QS to bot

Sale 2:

https://backpack.tf/profiles/76561197989002302#!/compare/1564185600/1566000000

https://backpack.tf/profiles/76561198353251333#!/compare/1565222400/1565395200

https://backpack.tf/profiles/76561198372942066#!/compare/1566432000/1566518400

Untrace

Sale 3:

https://backpack.tf/profiles/76561198372942066#!/compare/1566518400/1566777600

https://backpack.tf/profiles/76561198796100920#!/compare/1566432000/1566518400

https://backpack.tf/profiles/76561198342161127#!/compare/1566432000/1566518400

Untrace

Sale 4:

https://backpack.tf/profiles/76561198971997108#!/compare/1565654400/1565740800

https://backpack.tf/profiles/76561198021867575#!/compare/1565654400/1565740800

Sold with ~ 2 keys in sweets for Stormy Slouch

use there

sale 5:

https://backpack.tf/profiles/76561198021867575#!/compare/1566259200/1566345600

https://backpack.tf/profiles/76561198197777382#!/compare/1566259200/1566432000

Sold for 11 keys

Sale 6:

https://backpack.tf/profiles/76561198128968195#!/compare/1561593600/1561680000

https://backpack.tf/profiles/76561198830630023#!/compare/1561593600/1561680000

Sold with negligible sweets for spell + 5 keys

Spell Mini:

https://backpack.tf/profiles/76561198128968195#!/compare/1561852800/1562025600

https://backpack.tf/profiles/76561198137497491#!/compare/1561766400/1561939200

Sold for ~4 keys

https://backpack.tf/profiles/76561198280573588#!/compare/1562544000/1562630400

https://backpack.tf/profiles/76561198906041587#!/compare/1562544000/1562630400

Sold for ~4 keys

Taking 4

Total is 9 keys

Sale 7:

https://backpack.tf/profiles/76561198830630023#!/compare/1561766400/1561852800

https://backpack.tf/profiles/76561198142941074#!/compare/1561766400/1561852800

Sold for 10 keys

Sale 8:

https://backpack.tf/profiles/76561198142941074#!/compare/1561766400/1561852800

https://backpack.tf/profiles/76561198106795971#!/compare/1561766400/1561852800

Sold for HG Birdcage(13)

Sale 9:

https://backpack.tf/profiles/76561198106795971#!/compare/1561766400/1561852800

https://backpack.tf/profiles/76561198055099506#!/compare/1561248000/1561852800

Sold for 10 keys

Sale 10:

https://backpack.tf/profiles/76561198055099506#!/compare/1561852800/1561939200

https://backpack.tf/profiles/76561198166982558#!/compare/1561852800/1561939200

Sold with negligible sweets for OF Bloke's Bucket

Bucket Mini:

https://backpack.tf/suggestion/5d7ca3476780725a260e82f0

Suggestion for 8.75 keys

Sale 11:

https://backpack.tf/profiles/76561198166982558#!/compare/1561939200/1562025600

https://backpack.tf/profiles/76561198002757046#!/compare/1561939200/1562025600

QS

Sale 12:

https://backpack.tf/profiles/76561198002757046#!/compare/1563148800/1563235200

https://backpack.tf/profiles/76561198179131749#!/compare/1563235200/1563321600

Sold for 10 keys

Sale 13:

https://backpack.tf/profiles/76561198179131749#!/compare/1563321600/1564617600

https://backpack.tf/profiles/76561198021055079#!/compare/1564531200/1564617600

Sold with ~2 keys in sweets for Stormy Oiled Baker

use there

Sale 14:

https://marketplace.tf/items/tf2/30836;5;u16

$21.53 / $1.82 = 11.83 keys

Total sales @:

8.75, 9, 10, 10, 10, 11, 11.83, 13 keys

Month old seller at 12 keys,

new seller at 11,

buyers up to 7 keys,

taking 9 - 12 keys, watching seller.

https://backpack.tf/item/5644720628