I think I'll just stick to the Cowl for now. Can't do the streak some of you guys sometimes do, it will be at my pace. :P

Sale 1: http://backpack.tf/profiles/76561198111843265#!/compare/1467158400/1467244800

Sold for 26 keys. The name appearing in the histories of the keys (Forever 11), and the name appearing in the cowl's history (☯) are not the same, but it is the same person when clicking both profiles.

Sale 2: http://backpack.tf/profiles/76561198147258468#!/compare/1470441600/1471305600

Eeeh... when doing this from either Hydration or Forever 11's backpack, it gives the same result. That was probably a backpack cashout for paypal, not using.

Sale 3: http://backpack.tf/profiles/76561198147258468#!/compare/1472083200/1472169600

Sold along a duped sunbeams hard counter for a green energy thirst blood (48).

No particular buyout: http://www.tf2outpost.com/trade/28431188

Mini for the hard counter: http://backpack.tf/profiles/76561198119629032#!/compare/1471737600/1471824000

Sold along duped eerie orbiting fire hotrod + stormy storm caribean conqueror (all histories match).

The reggae is clean, so the value for the hard counter would be very high. The seller is banned on Outpost, couldn't find any buyout. Capping at 30, the current lowest seller, sounds like the way to go.

So 48-30 = 18 keys for this third sale. Considering the 26 pure sale, I am excluding this as a low outlier. If my valuation of the sunbeams hard counter happens to be too pessimistic (the seller at 30 is young), it would be even worse anyway.

Sale 4: http://backpack.tf/profiles/76561198084205929#!/compare/1472515200/1472601600

Bulk sale, the cowl does not represent a high enough percentage on Famous999936's side to be considered. Excluding this.

Sale 5: http://backpack.tf/profiles/76561198084205929#!/compare/1472428800/1472515200

Sold along nuts and bolt tribo for a Haunted Ghost Hustler. Appear in this trade: http://www.tf2outpost.com/trade/28440191

But would accept 23 keys, as stated on a former, but still recent, trade: http://www.tf2outpost.com/trade/28438770

Mini for the tribo: http://backpack.tf/profiles/76561198044081220#!/compare/1472601600/1472688000

1:1'd with stormy storm degroot.

Micro for degroot: Many unsolds at 15, taking 14.

Thus making the tribo 14 keys.

Mini for the hustler: http://backpack.tf/profiles/76561198128990126#!/compare/1471824000/1472256000

Sold for duped purple energy capotain + strange seven seas (2) + mannrobics (1.5) + burstchester (3.5) +Strange KS Well worn flower power (1)

Micro for PE capotain: http://backpack.tf/profiles/76561198128990126#!/compare/1467676800/1468886400

1:1'd with PE larrikin. Should easily cap at 30, the updated price for the clean version of the PE capotain.

That makes the Hustler price at 38.

To sum up: 38 (hustler) - 14 (tribo) = 24, but caps at the 23 keys buyout.

So we have got a sale at 23 keys.

Sale 6: http://backpack.tf/profiles/76561197963728247#!/compare/1471564800/1471910400

Not usable, the user did not connect to bp.tf everyday, making this compare link match two hats with unmatching histories.

While there is a pure sale superior to an item sale, it appears the gap is really not wide enough to exlude the 23 keys sale. Making it a range of 23-26.

Feel free to leave feedbacks. :D