Alright second try

Sale 1: 1:1 With a Nuts and bolts Hustler's Hallmark (12 Keys, Though Outdated with a 2 month seller)

12 Keys

https://backpack.tf/profiles/76561198135529802#!/compare/1499644800/1499731200

https://backpack.tf/profiles/76561198173442901#!/compare/1499644800/1499731200

Sale 2: Sold Along a Bubbling Napper's Respite (15 Keys In Date) For a Circling Peace Sign Lucky Shot (28 Keys In Date)

13 Keys

https://backpack.tf/profiles/76561198173442901#!/compare/1499731200/1499817600

https://backpack.tf/profiles/76561198249553546#!/compare/1499731200/1499817600

Sale 3:

Quick Sold for 8 Keys

https://backpack.tf/profiles/76561198249553546#!/compare/1499990400/1500076800

https://backpack.tf/profiles/76561198316604409#!/compare/1499990400/1500076800

Sale 4: Requicksold for 9 Keys I assume?

https://backpack.tf/profiles/76561198316604409#!/compare/1500076800/1500163200

https://backpack.tf/profiles/76561198355490842#!/compare/1500076800/1500163200

Sale 5: Bought for 10 Keys 10 Refined, Buyers History Matches though bots does not? (Ticket was used) Took 22 Days possibly?

https://backpack.tf/profiles/76561198138852782#!/compare/1493424000/1493510400

https://backpack.tf/profiles/76561198304138933#!/compare/1493424000/1493510400

Sale 6: Bought from scrap.tf through a series of trades?

https://backpack.tf/profiles/76561198271889849#!/compare/1499126400/1500422400

https://backpack.tf/item/1146128952

Sale 6: A weird chain where a Orb Plants Respectless Rubber Glove (12 Keys Out Dated) was quick sold to a bot, to buy a Capo at a quicksell price, only for that to be quick sold for 9 keys to another person, who quick sold it for 9 keys it back to the original bot

https://backpack.tf/profiles/76561198121040682#!/compare/1496534400/1496793600

https://backpack.tf/profiles/76561198262763716#!/compare/1496793600/1496880000

https://backpack.tf/profiles/76561198262763716#!/compare/1496880000/1496966400

Total Sales: 8,9,10,12,13

Since 13 was a bulk sale, and 8 and 9 were quicksales, I'm going to say a 10-12 Range instead since 10 could have taken 22 days

thanks for shuffle spy for letting me know that 13 was a bulk sale