Fix.

Sale 1: https://backpack.tf/profiles/76561197961279983#!/compare/1499731200/1499904000 - 41 pure

Sale 2: https://backpack.tf/profiles/76561198168863803#!/compare/1500681600/1500768000

Sold with a Strange Dead'er Alive (3 keys) for a Clean Cloud 9 Troublemaker's Tossle Cap (41 keys)

41 - 3 = 38

Sale 3: https://backpack.tf/profiles/76561198044418638#!/compare/1500768000/1500854400 - Unusable.

Sale 4: https://backpack.tf/profiles/76561198328694804#!/compare/1500768000/1500854400

Sold with 2 pure for a Duped Eerie Orbiting Fire Dr's Dapper Topper (44 keys)

44 - 2 = 42

Additional by Marty:

https://backpack.tf/profiles/76561198195731583#!/compare/1499817600/1499904000 - 35 pure, ID#s match

https://backpack.tf/profiles/76561197973959854#!/compare/1503014400/1503100800 - Ghosts Hoodie, 33

https://marketplace.tf/items/339;5;u36 - ~32 keys on MP

https://backpack.tf/item/885338885 - History

https://backpack.tf/profiles/76561198054758757#!/compare/1501804800/1501891200 - 32 pure

https://backpack.tf/profiles/76561198077359772#!/compare/1502755200/1502841600 - Aussie Scatter + 8 keys, ~31

http://www.tf2outpost.com/trade/29327918 - Sold the same day it was posted here, unclear if it was advertised prior to this

https://backpack.tf/profiles/76561198077359772#!/compare/1503014400/1503100800 - Steaming War Pig, 39

Sale #1 actually sold for 40 pure - credits to Blaze for finding Squirrelly's mention of it here: http://www.tf2outpost.com/trade/29257115

The last key and the two refined at the end of the group in the compare don't match - their ID#s are close enough to the rest to trick the compare feature, but not close enough to match the other keys.

So, sales at 31 (Scatter + keys), 32 (keys), 32 (MP), 33 (Hoodie), 35 (keys), 38 (Tossle), 39 (War Pig), 40 (keys), and 42 (Dapper).

Current sellers: http://imgur.com/a/cF9pM - the mature sellers for 40 are dupes, but the 36 key seller is actually deceptively mature: http://www.tf2outpost.com/trade/29293026 (Also credits Blaze)

With several sales above 40, including a full pure sale, I'm fine with having a high-end above that seller though. I would strike one sale from each end of the range and go with 32-40 here.

32-40 it is!