Sale 1:

https://backpack.tf/profiles/76561198154072948#!/compare/1551225600/1552089600

https://backpack.tf/profiles/76561198026129220#!/compare/1552003200/1552089600

QS?

Sale 2:

https://backpack.tf/profiles/76561198024723285#!/compare/1547164800/1547251200

https://backpack.tf/profiles/76561198825268471#!/compare/1547164800/1547251200

Sold with ~2 keys in sweets for Steaming Festivizer

Festivizer Mini:

https://backpack.tf/suggestion/5c9d3fd76780723e9a6e8e7d

Suggestion for 11 keys

Total is 9 keys

Sale 3:

https://backpack.tf/profiles/76561198825268471#!/compare/1547164800/1547251200

https://backpack.tf/profiles/76561198153276416#!/compare/1547164800/1547251200

Can't trace

Sale 4:

https://backpack.tf/profiles/76561198153276416#!/compare/1547251200/1547337600

https://backpack.tf/profiles/76561198053787974#!/compare/1547251200/1547337600

Sold for Strange AWP(~9)

Sale 5:

https://backpack.tf/profiles/76561198053787974#!/compare/1547251200/1547337600

https://backpack.tf/profiles/76561198024723285#!/compare/1547251200/1547337600

Resold for steaming festivizer???

Festivizer Mini:

https://backpack.tf/suggestion/5c9d3fd76780723e9a6e8e7d

Suggestion for 11 keys

Sale 6:

https://backpack.tf/profiles/76561198024723285#!/compare/1547251200/1547337600

https://backpack.tf/profiles/76561198184517141#!/compare/1547251200/1547337600

Sold with low craft for 15 keys

can't tell what the low craft would be worth, no sales on it. not gonna use this sale.

Sale 7:

https://marketplace.tf/items/30180;5;u35

$15.00 / $1.8 = 8.33 keys

Total sales @:

8.33, 9, 9, 11 keys

Seller at 11,

buyers up to ~8.5 keys,

taking 9 - 11 keys