Rain Delay

https://backpack.tf/item/1397288108

Sale 1) Bulk

https://backpack.tf/profiles/76561198112516663#!/compare/1523318400/1523404800

Sale 2) Bulk

https://backpack.tf/profiles/76561198227232564#!/compare/1523923200/1524009600

https://backpack.tf/item/593872081

Sale 3) Sold for a Purple Confetti Defiant Spartan (12.5 Keys) + 2 Keys

https://backpack.tf/profiles/76561197996095002#!/compare/1524009600/1524096000

12.5 + 2 = 14.5, which rounds to 15 Keys

Spartan Mini

https://backpack.tf/suggestion/5b2f93a344325a634a5710a8 - 12.5 Keys

Sale 2) Sold + ~1 Key of Items for a Miami Nights Tough Guy's Toque (18 Keys)

https://backpack.tf/profiles/76561198346875595#!/compare/1524182400/1524268800

https://backpack.tf/profiles/76561198169914982#!/compare/1524182400/1524268800

18 - 1 = 17 Keys

Toque Mini

https://backpack.tf/profiles/76561198267750483#!/compare/1524096000/1524182400 - Sold for a Stormy Airdog (12 Keys) + ~5 Keys of Items

https://backpack.tf/profiles/76561198385366296#!/compare/1524096000/1524182400 - Quicksold for 18 Keys

https://backpack.tf/profiles/76561198346875595#!/compare/1524182400/1524268800 - Sold for a Terror-Watt Toy Soldier (15.5 Keys) + 3 Keys

https://backpack.tf/profiles/76561198355667850#!/compare/1523923200/1524268800 - Sold for a Circling TF Logo Ol' Guadalajara + 2 Keys

https://backpack.tf/profiles/76561198054464807#!/compare/1525564800/1525651200 - Sold for 18 Keys + 8 Refined

Airdog Micro

https://backpack.tf/suggestion/5b1bc15744325a40ce1d3192 - 12 or 11 - 12, still rounds to 12 Keys

Sale 3) Sold for a Purple Confetti Gentleman's Gatsby

https://backpack.tf/profiles/76561198169914982#!/compare/1524182400/1524268800

http://www.tf2outpost.com/trade/29625740 - Capped by the Buyout of 17 Keys

Sale 4) ?

https://backpack.tf/profiles/76561198385366296#!/compare/1524182400/1524268800

https://backpack.tf/profiles/76561198801422966#!/compare/1524182400/1524268800

Sale 5) Sold + 1 Key for a Stormy Storm Head Warmer

https://backpack.tf/profiles/76561198801422966#!/compare/1524268800/1524355200

Using this for the Head Warmer.

Sale 6) ?

https://backpack.tf/profiles/76561198358612698#!/compare/1524268800/1524355200

https://backpack.tf/profiles/76561198166270019#!/compare/1524182400/1524268800

Sale 7) Sold for 15 Keys + 12 Refined

https://backpack.tf/profiles/76561198166270019#!/compare/1524268800/1524355200

Rounds to 15 Keys