Sale 1:

Sold for 9 keys

No outpost

Seller: http://backpack.tf/profiles/76561198107041561#!/compare/1480204800/1480291200

Buyer: http://backpack.tf/profiles/76561198139759348#!/compare/1480291200/1480377600

X = 9

Sale 2:

Sold for 9 keys

No outpost

Seller: http://backpack.tf/profiles/76561198143847301#!/compare/1480723200/1480809600

Buyer: http://backpack.tf/profiles/76561198306932517#!/compare/1480723200/1480809600

X = 9

Sale 3:

Sold for 8 keys + >0.5 keys in items

http://www.tf2outpost.com/trade/28660001 - B/O of 11

Seller: http://backpack.tf/profiles/76561198095320741#!/compare/1482105600/1482192000

Buyer: http://backpack.tf/profiles/76561198245131174#!/compare/1482105600/1482192000

X = 9

Sale 4:

Sold for Collector’s Pro. KS Your Eternal Reward (Mini at 8 below) + cheap painted item (~0.5)

No outpost

Seller: http://backpack.tf/profiles/76561198245131174#!/compare/1482105600/1482192000

Buyer: http://backpack.tf/profiles/76561198155586944#!/compare/1482105600/1482192000

X = 9

Sale 5:

Sold for Stormy Storm Mongolian

No outpost

Seller: http://backpack.tf/profiles/76561198000643699#!/compare/1479686400/1480032000

Buyer: http://backpack.tf/profiles/76561198253339587#!/compare/1479859200/1479945600

May be better to update the Stormy Mongolian with this sale.

Your Eternal Reward Mini:

Sold for 8 keys

No outpost

Seller: http://backpack.tf/profiles/76561198253533632#!/compare/1484265600/1484352000

Buyer: http://backpack.tf/profiles/76561198193601761#!/compare/1484092800/1484438400

X = 8

Sales at:

9 (4x)

Current owner (which I cannot find) has listed it on the SCM for $42.45 USD.

Going with 9 flat.