Sale 1:

https://backpack.tf/profiles/76561198080179568#!/compare/1549497600/1549584000

https://backpack.tf/profiles/76561198269692529#!/compare/1549238400/1549584000

Sold for 22 Keys (162 keys total, 140 used to buy Tailor)

Sale 2:

https://backpack.tf/profiles/76561198156255538#!/compare/1549929600/1550016000

https://backpack.tf/profiles/76561198214182784#!/compare/1549843200/1551916800

Sold for ~22 keys in items

Sale 3:

https://backpack.tf/profiles/76561198074924284#!/compare/1550275200/1550707200

https://backpack.tf/profiles/76561198841047125#!/compare/1552953600/1553126400

Sold for ~28 keys

Sale 4:

https://backpack.tf/profiles/76561198841047125#!/compare/1552953600/1553126400

https://backpack.tf/profiles/76561198046580198#!/compare/1552953600/1553040000

Sold for ~18 keys

Sale 5:

https://backpack.tf/profiles/76561198838447026#!/compare/1553040000/1553126400

https://backpack.tf/profiles/76561198336633071#!/compare/1553126400/1553212800

Sold for CTFL Pile of Scrap(23)

Sale 6:

https://backpack.tf/profiles/76561198336633071#!/compare/1554508800/1554681600

https://backpack.tf/profiles/76561198125791160#!/compare/1554595200/1554681600

Sold with ~0.5 keys in sweets for KaW Exec(21)

Total is 20 keys (0.5 rounds up)

Sale 7:

https://backpack.tf/profiles/76561198125151492#!/compare/1550188800/1550361600

https://backpack.tf/profiles/76561198209640976#!/compare/1550275200/1550361600

Sold with MS Flippin + 1 key for Blizzardy Dapper(33.5)

https://bot.tf/stats/listings/MV3PJJ34

B/O of 22 keys, by sellers of taunt, caps at B/O.

Sale 8:

https://backpack.tf/profiles/76561198209640976#!/compare/1550275200/1550361600

https://backpack.tf/profiles/76561198180730062#!/compare/1550275200/1550361600

Sold for 17 keys

Sale 9:

https://backpack.tf/profiles/76561198180730062#!/compare/1550275200/1550361600

https://backpack.tf/profiles/76561198095236132#!/compare/1550361600/1550448000

Sold for ~18 keys

Sale 10:

https://backpack.tf/profiles/76561198095236132#!/compare/1556582400/1556668800

https://backpack.tf/profiles/76561198080179568#!/compare/1556582400/1556668800

Sold for ~18 keys

Sale 11:

https://backpack.tf/profiles/76561198125791160#!/compare/1549756800/1549843200

https://backpack.tf/profiles/76561198215618615#!/compare/1549843200/1549929600

Sold for 23 keys

Sale 12:

https://backpack.tf/profiles/76561198123364734#!/compare/1551139200/1551830400

https://backpack.tf/profiles/76561198080179568#!/compare/1551744000/1551830400

QS

Sale 13:

https://backpack.tf/profiles/76561198080179568#!/compare/1552348800/1552435200

https://backpack.tf/profiles/76561198302331195#!/compare/1552435200/1552521600

Sold for Max Head(21) +1 key

Total is 22 keys

Sale 14:

https://backpack.tf/profiles/76561198302331195#!/compare/1552435200/1552521600

https://backpack.tf/profiles/76561198011321852#!/compare/1552435200/1552521600

QS for ~18 keys

Sale 15:

https://backpack.tf/profiles/76561198011321852#!/compare/1553472000/1553558400

https://backpack.tf/profiles/76561198188896535#!/compare/1553472000/1553558400

Sold for 23 keys

Sale 16:

https://backpack.tf/profiles/76561198188896535#!/compare/1554249600/1554336000

https://backpack.tf/profiles/76561198050031659#!/compare/1554249600/1554336000

Sold for 22 keys

sale 17:

https://backpack.tf/profiles/76561198050031659#!/compare/1554336000/1554422400

https://backpack.tf/profiles/76561198875470056#!/compare/1554336000/1554422400

Untrace

Sale 18:

https://backpack.tf/profiles/76561198875470056#!/compare/1554336000/1554422400

https://backpack.tf/profiles/76561198027152204#!/compare/1554336000/1554422400

Gambling?

Sale 19:

https://backpack.tf/profiles/76561198027152204#!/compare/1554422400/1554508800

https://backpack.tf/profiles/76561198090147535#!/compare/1554422400/1554508800

untrace

Sale 20:

https://backpack.tf/profiles/76561198090147535#!/compare/1554422400/1554508800

https://backpack.tf/profiles/76561198050433855#!/compare/1554422400/1554508800

Bulk

Sale 21:

https://backpack.tf/profiles/76561198050433855#!/compare/1554508800/1554595200

https://backpack.tf/profiles/76561198130439878#!/compare/1554508800/1554595200

Sold for Searing Airdog + ~6 keys in sweets

Airdog Mini:

https://backpack.tf/suggestion/5cd144b367807237977e1104

Suggestion for 14 keys

Total is 20 keys

Sale 22:

https://backpack.tf/profiles/76561198130439878#!/compare/1554508800/1554595200

https://backpack.tf/profiles/76561198341815489#!/compare/1554508800/1554595200

Scammer sale

Total sales @:

17, 18, 18, 18, 20, 20, 22, 22, 22, 22, 23, 23, 28 keys

Buyers at 18 keys,

Sellers at 23 keys,

Taking 20 - 23 keys