Bought by myself for a Poisoned Shadows Carousers Capotain + Sulphurous Ze Goggles + 16 pure

Proof of trade: https://imgur.com/gallery/bnj33xf

https://backpack.tf/profiles/76561198062017881#!/compare/1617667200/1617840000

Keys don’t show in compare but are in the imgur link

Mini for Ze Goggles

https://backpack.tf/profiles/76561198072098273#!/compare/1613865600/1614038400 - 36 pure

https://backpack.tf/profiles/76561198148760840#!/compare/1612569600/1612656000 - bulk

https://imgur.com/gallery/ARRavLS - 37 pure

Making Ze Goggles 36.5

However the Capotain in this sale is duped. The 185 price came from the clean one, so here are the duped sales

The sole duped sale is for a duped Chiroptera Strontium (120 Keys) + Time Warp Safe'n'Sound (85 Keys) + Accursed Fubar Fanfare (17 Keys)

https://backpack.tf/profiles/76561198328282971#!/compare/1614988800/1615075200

120 + 85 + 17 = 222 Keys

The sole usable Strontium sale is the Strontium + 5 Keys for a SBTWC Little Buddy (125 Keys)

https://backpack.tf/profiles/76561198339336870#!/compare/1618617600/1618704000

https://backpack.tf/suggestion/608e0d90bee8c119c50c6c8c - The Fubar is 17 Keys

222 + 36.5 + 26 = 274.5, which rounds to 275 Keys, so 275 flat

Big thanks to Shuffle Spy and credits for the help on the suggestion :)