Sale 1:

https://backpack.tf/profiles/76561198309266347#!/compare/1547424000/1547510400

https://backpack.tf/profiles/76561197970411095#!/compare/1547424000/1547510400

Sold for 27 keys(Scatter doesn't match)

Sale 2:

https://backpack.tf/profiles/76561197970411095#!/compare/1547510400/1547596800

https://backpack.tf/profiles/76561198826254247#!/compare/1547510400/1547596800

Sold for 29 keys

Sale 3:

https://backpack.tf/profiles/76561198826254247#!/compare/1547683200/1547769600

https://backpack.tf/profiles/76561198288392494#!/compare/1547596800/1547769600

Sold for G Fetti Ballcap + 12 keys

Ballcap Mini:

https://backpack.tf/suggestion/5c61b360cf6c7514035b0f4a

Suggestion for 21 keys

Total is 33 keys

Sale 4:

https://backpack.tf/profiles/76561198288392494#!/compare/1547596800/1547769600

https://backpack.tf/profiles/76561198019140582#!/compare/1547683200/1547769600

Sold with 10 keys + Planets Whoopee(9.75) for Strange Searing Woodsman

Use there

Sale 5:

https://backpack.tf/profiles/76561198019140582#!/compare/1548547200/1548633600

https://backpack.tf/profiles/76561198133955369#!/compare/1548460800/1548806400

Untrace

Sale 6:

https://backpack.tf/profiles/76561198133955369#!/compare/1549497600/1549584000

https://backpack.tf/profiles/76561198035286460#!/compare/1549411200/1549584000

Sold with TW Dogger for Duped CPS Bonk

Dogger Mini:

https://backpack.tf/suggestion/5c6513cccf6c751de800e809

Suggestion for 18 keys

Bonk Mini:

https://backpack.tf/profiles/76561198080179568#!/compare/1547337600/1547424000

https://backpack.tf/profiles/76561198082079987#!/compare/1547337600/1547510400

Sold for 50 keys

Total is 32 keys

Sale 7:

https://marketplace.tf/items/30357;5;u56

Sold for 52.99 USD,

Keys at 1.80 USD

Total is 29.44 keys

Total sales @:

27, 29, 29.44, 32, 33 keys

Buyers up to 27 keys,

considering 2 29 sales, even with one being fast,

taking 29 - 33 keys.