Sale 1:

https://marketplace.tf/items/378;5;u8

March 18, 2019 sold for $230.00 / 1.79 = 129 keys

Sale 2:

https://backpack.tf/profiles/76561198088675617#!/compare/1555200000/1555977600

https://backpack.tf/profiles/76561198114402400#!/compare/1555113600/1555200000

A bunch of stuff, even using outdated prices this easily caps at the 160 key buyout.

https://gyazo.com/e26f52fa803392006f3ea8fbf1a819cb

Sale 3:

https://backpack.tf/profiles/76561198125791160#!/compare/1556496000/1556582400

https://backpack.tf/profiles/76561198327837250#!/compare/1556496000/1556582400

Sold for Arcana Bot Dogger, Ominous Night Burstchester, 2.5 keys in mixed

Caps at 160 buyout easily - https://gyazo.com/a53716b163af985c1e447238a9255b6a

// ARCANA BOT DOGGER https://backpack.tf/suggestion/5cd8afa2d3817260a56c115d

https://marketplace.tf/items/30018;5;u73

Sold on March 31, 2019 for $315.00 / 1.79 = 176 keys

Sale 4:

https://backpack.tf/profiles/76561198036445124#!/compare/1552003200/1552089600

https://backpack.tf/profiles/76561198037248506#!/compare/1552003200/1552089600

171 keys + Blizzardy Hot Dogger (18 keys, in-date) = 189 keys

Sale 5-6?

https://backpack.tf/profiles/76561198114402400#!/compare/1554508800/1554595200

https://backpack.tf/profiles/76561198218497692#!/compare/1554508800/1554595200

Bulk

https://backpack.tf/profiles/76561198218497692#!/compare/1554508800/1554595200

https://backpack.tf/profiles/76561198258937500#!/compare/1554508800/1554595200

https://backpack.tf/profiles/76561198138476703#!/compare/1554249600/1554681600

I have no clue what exactly is going on in these 3 histories and compares, but it seems to be Sulphurous Executioner (in-date 125 keys) and Stare From Beyond Doctor's Sack.

The Doctor's Sack has no valid minis.

// STARING SACK

https://backpack.tf/profiles/76561198138476703#!/compare/1554854400/1555027200

https://backpack.tf/profiles/76561198090147535#!/compare/1554940800/1555027200

Like 32 keys - this is current buy order price

https://gyazo.com/42ef6fa6da08b60493a4609aec24cc9a

https://backpack.tf/profiles/76561198218497692#!/compare/1554508800/1554595200

Bulk

//

Sale 7:

https://backpack.tf/profiles/76561198138476703#!/compare/1553385600/1554163200

https://backpack.tf/profiles/76561198804015732#!/compare/1554076800/1554163200

115 keys, very close to buyers

Sale 8:

https://backpack.tf/profiles/76561198804015732#!/compare/1553644800/1553731200

https://backpack.tf/profiles/76561198080179568#!/compare/1553644800/1553731200

Looks like bulk or low quicksell

Sale 9:

https://steamcommunity.com/market/listings/440/Unusual%20Team%20Captain

https://backpack.tf/profiles/76561198204196495#!/compare/1550188800/1550275200

https://backpack.tf/profiles/76561198080179568#!/compare/1550188800/1550275200

SCM, 3 sold this day so I can't tell what the price was

Looks like it sold in less than a day, so maybe a quicksell

Sale 10:

https://backpack.tf/profiles/76561198049322925#!/compare/1556928000/1557014400

https://backpack.tf/profiles/76561198375014774#!/compare/1556928000/1557014400

Unsure