Changing the rounding to account for the lack of a good Pencil Mini.

https://backpack.tf/item/7410576879

Sale) Sold for a Stormy 13th Hour Allbrero (197.5 Keys) + Scorching Flames Burning Question (57 Keys)

https://backpack.tf/profiles/76561198120672630#!/compare/1558137600/1558224000

197.5 + 57 = 254.5, which I'll round to 250 Keys

Burning Question Mini

https://backpack.tf/profiles/76561198146168832#!/compare/1562371200/1562457600 - Sold for 57 Keys + 5.55 Refined

https://backpack.tf/profiles/76561198048140234#!/compare/1562457600/1562544000 - Sold for 57 Keys + 6 Refined

https://backpack.tf/profiles/76561198092160716#!/compare/1562457600/1562544000 - The Keys were used to buy the Hunter in Darkness

Allbrero Mini

https://backpack.tf/profiles/76561198041108750#!/compare/1562371200/1562544000 - Sold for a Sunbeams Defragmenting (230 Keys)

https://backpack.tf/profiles/76561198120672630#!/compare/1562457600/1562544000 - Sold + 11 Keys for an Ama Stahl (90 Keys) + MG Hazmat (85 Keys)

Taking 165 - 230 Keys, which averages to 197.5 Keys

Defragmenting Micro

https://backpack.tf/profiles/76561197978500506#!/compare/1562716800/1562803200 - Sold for a Frostbite DCO (165 Keys) + Duped Peace Pencil (65 Keys)

165 + 65 = 230 Keys

Deep Cover Operator Nano

https://backpack.tf/suggestion/5d38e904d38172139f25056f - 165 Keys

Pencil Nano

https://backpack.tf/profiles/76561198232041512#!/compare/1562284800/1562457600 - Bulk for the Veil and Fruit

https://cdn.discordapp.com/attachments/569696175007989801/603657667679879213/pencil1.PNG - There was a Buyout of 65 Keys from this sale

There's nothing else.

Stahlhelm Micro

https://backpack.tf/suggestion/5d3689ed6780726f6f502cc5 - 90 Keys