Deep Space

https://backpack.tf/item/5270815779

Sale 1) Bulk sale for a Ghastly Ghosts Jr Rotation Sensation

https://backpack.tf/profiles/76561198159690821#!/compare/1509408000/1509494400

Sale 2) Sold + Electrostatic Bonk Helm for a Frostbite Bomber's Bucket Hat

https://backpack.tf/profiles/76561198156315732#!/compare/1510272000/1510444800

There's no Mini for the Bonk because its only other recent sale is below.

Sale 3) Bulk sale for an Ancient Codex Captain Space Mann

https://backpack.tf/profiles/76561198159593026#!/compare/1510444800/1510617600 - Seller's Backpack

https://backpack.tf/profiles/76561198132226518#!/compare/1510531200/1510617600 - Buyer's Backpack

Sale 4) Sold for a Miami Nights Glasgow Great Helm (21.5 Keys) + Strange Specialized Killstreak Frying Pan (~10 Keys) + 6 Keys

https://backpack.tf/profiles/76561198132226518#!/compare/1512604800/1512691200

21.5 + 10 + 6 = 37.5, which rounds to 38 Keys

Glasgow Mini

https://backpack.tf/suggestion/5a2c3056cf6c753f533674d5 - 21.5 Keys