Suggestion Squad Duo 7 - Scrambled Eggs - Mini for the Burning Flames Doctor's Sack

https://backpack.tf/item/2255821157

Sale 1) Sold for 10 Keys + ~9 Keys of Items

https://backpack.tf/profiles/76561198050933686#!/compare/1529798400/1529884800

10 + 9 = 19 Keys

Sale 2) Sold for a Miami Nights Big Chief (16 Keys) + ~3 Keys of Items

https://backpack.tf/profiles/76561198310972287#!/compare/1529798400/1529884800

16 + 3 = 19 Keys

Sale 3) Bulk Sale

https://backpack.tf/profiles/76561198114402400#!/compare/1530835200/1530921600

Sale 4) Bulk Sale

https://backpack.tf/profiles/76561198071346629#!/compare/1530921600/1531180800

https://marketplace.tf/items/30097;5;u34 - Sold for $30 when Keys were ~$1.98 each

30 / 1.98 = 15.15, which rounds to 15 Keys

Not using this sale as it goes Outdated in 5 Days, but using it as supportive evidence for a drop.