Sale 1:

Sold for ~10 keys in pure/items

No outpost

Seller: https://backpack.tf/profiles/76561198098501872#!/compare/1496016000/1496102400

Buyer: https://backpack.tf/profiles/76561198324307562#!/compare/1496016000/1496102400

X = 10

Sale 2:

Sold for 10 keys

No B/Os on outpost

Seller: https://backpack.tf/profiles/76561198011321852#!/compare/1501372800/1501459200

Buyer: https://backpack.tf/profiles/76561198075146778#!/compare/1501113600/1501459200

X = 10

Sale 3:

Sold for $19.53 on Marketplace.tf

https://marketplace.tf/items/249;5;u35

Couldn’t identify item history

19.53/2.05 = ~9.5

X = 10

Sale 4:

Sold for $21 on Marketplace.tf

https://marketplace.tf/items/249;5;u35

https://backpack.tf/item/864166650

21/2.05 = ~10.2

X = 10

Sale 5:

Sold for 9 keys in a day

No outpost

Seller: https://backpack.tf/profiles/76561198267189538#!/compare/1500422400/1500508800

Buyer: https://backpack.tf/profiles/76561198179470854#!/compare/1500076800/1500508800

X = 9

Sale 6:

Sold for Spec. KS Batsaber (~9) (also in about a day)

Seller: https://backpack.tf/profiles/76561198179470854#!/compare/1500595200/1500681600

Buyer: https://backpack.tf/profiles/76561198349886701#!/compare/1500595200/1500681600

X = 9

Sale 7:

Sold for 9 keys in ~1 week

http://www.tf2outpost.com/trade/29207254 - B/O of 9

Seller: https://backpack.tf/profiles/76561198021221797#!/compare/1496534400/1496880000

Buyer: https://backpack.tf/profiles/76561198253194346#!/compare/1496707200/1496793600

X = 9

Sale 8:

Sold for 8 keys + ~1 key in items

http://www.tf2outpost.com/trade/29234376 - B/O of 10

Seller: https://backpack.tf/profiles/76561198043932467#!/compare/1498521600/1499385600

Buyer: https://backpack.tf/profiles/76561198349173074#!/compare/1498867200/1499040000

X = 9

Sale 9:

Sold with 1 key + 20 ref for Australium Force a Nature (10)

Seller: https://backpack.tf/profiles/76561198202280436#!/compare/1495238400/1495411200

Buyer: https://backpack.tf/profiles/76561198064867773#!/compare/1495324800/1495411200

X = 8

Sale 10:

Sold for Orbiting Fire Magnificent Mongolian

Seller: https://backpack.tf/profiles/76561198349173074#!/compare/1499126400/1499299200

Buyer: https://backpack.tf/profiles/76561198120672630#!/compare/1499040000/1499299200

Can be used on the Mongolian.

Sale 11:

Sold for Bubbling Larrikin Robin + ~1 key in items

http://www.tf2outpost.com/trade/29261706 - B/O of 10

Seller: https://backpack.tf/profiles/76561198120672630#!/compare/1499299200/1499385600

Buyer: https://backpack.tf/profiles/76561198294005768#!/compare/1499126400/1499385600

Will most likely cap at the B/O, or at least fall in the range.

Sale 12:

Bulk for Cloud 9 Lucky Shot

Seller: https://backpack.tf/profiles/76561198014269804#!/compare/1499731200/1499817600

Buyer: https://backpack.tf/profiles/76561198216561389#!/compare/1499731200/1499817600

Sale 13:

Bulk for the things

Seller: https://backpack.tf/profiles/76561198216561389#!/compare/1500422400/1500508800

Buyer: https://backpack.tf/profiles/76561198174470406#!/compare/1500336000/1500422400

Sale 14:

Bulk for Dead Presidents Backwards Ballcap

Seller: https://backpack.tf/profiles/76561198162238099#!/compare/1497225600/1497398400

Buyer: https://backpack.tf/profiles/76561198303584724#!/compare/1497312000/1497398400

Sale 15:

Bulk for Orbiting Fire Slope Scopers + ~5 keys in pure/items

Seller: https://backpack.tf/profiles/76561198088901743#!/compare/1501372800/1501545600

Buyer: https://backpack.tf/profiles/76561198173442901#!/compare/1501459200/1501545600

Sellers:

9 keys:

http://i.imgur.com/vCiSiDK.png - 5 days

10 keys:

http://i.imgur.com/IgOm7Yd.png

Offers:

http://www.tf2outpost.com/trade/29308462

Sales at:

8

9 (4x)

10 (4x)

Buyers for any unusual at 8. Excluding 8.

9 may have quicksold a couple times, but it’s a pretty common trading point, and the current seller at 9 has been selling for 5 days. 9 stays.

Going with 9-10.