Sellers:

https://marketplace.tf/items/110;5;u13

https://backpack.tf/item/939917162

http://www.tf2outpost.com/trade/29217977 - b/o: $575 = 278 keys

Sold:

https://backpack.tf/profiles/76561198065132511#!/compare/1495670400/1495756800

https://backpack.tf/profiles/76561198067677315#!/compare/1495670400/1495756800 - ?

https://backpack.tf/profiles/76561198065132511#!/compare/1495152000/1495670400 - bulk

https://backpack.tf/profiles/76561198200837735#!/compare/1494460800/1494547200 - sold for 190 keys

https://backpack.tf/profiles/76561198055336254#!/compare/1491782400/1491868800

https://backpack.tf/profiles/76561198200837735#!/compare/1491782400/1491868800 - bulk

https://backpack.tf/profiles/76561198120347528#!/compare/1491177600/1491264000 - sold for Morning Glory Pardner's Pompadour (65) + Morning Glory Brim-Full Of Bullets (45) + bunch of items (201) = 311 keys (outlier)

https://backpack.tf/profiles/76561198015296784#!/compare/1491091200/1491177600 - sold for Scorching Flames Cloud Crasher (155) + duped Orbiting Fire Le Party Phantom (28) + Purple Energy Old Guadalajara (37) + 8 keys = 228 keys

Mini's:

Morning Glory Pardner's Pompadour:

https://backpack.tf/suggestion/593ae159e33877249652c186 = 65 keys

Morning Glory Brim-Full Of Bullets:

https://backpack.tf/suggestion/593ae309c440451b007ca553 = 45 keys

duped Orbiting Fire Le Party Phantom:

Sold:

http://www.tf2outpost.com/trade/28881743

https://backpack.tf/profiles/76561198029371596#!/compare/1494374400/1494460800 - sold for 28 keys

taking 28 keys

Conclusion:

sales at 190, 228, 311

taking 190-230 keys