Mlemory Leak

https://backpack.tf/item/4399001493

Sale) Sold for an Overclocked Rimmed Raincatcher (18 Keys) + Blizzardy Storm Grenadier's Softcap (16 Keys) + 2 Keys

https://backpack.tf/profiles/76561198342161127#!/compare/1559174400/1559260800

https://backpack.tf/profiles/76561198064747714#!/compare/1559174400/1559260800

https://imgur.com/a/buxtXy1 - Capped by the Buyout of 34 Keys

Rimmed Mini

https://backpack.tf/suggestion/5d4c97d46780724b333a7c33 - 18 Keys

Softcap Mini

https://backpack.tf/profiles/76561198072241551#!/compare/1561939200/1562025600 - Sold for 12 Keys + ~2 Keys of Items

https://backpack.tf/profiles/76561198442349647#!/compare/1562284800/1562544000 - Sold for 14 Keys

https://backpack.tf/profiles/76561198832602199#!/compare/1559088000/1559174400 - Sold for 16 Keys

https://marketplace.tf/items/tf2/227;5;u30 - Sold for $33.87 when Keys were ~$1.85 each and $32.77 when Keys were ~$1.81 each

33.87 / 1.85 = 18.3, which rounds to 18 Keys

32.77 / 1.81 = 18.1, which rounds to 18 Keys

Taking 16 Keys.