14 month old price!

Sale 1: (credits to PONTIFF GIRUVAHN)

Sold for Sunbeams Patriot Peak = 900 keys

http://www.tf2outpost.com/trade/28236928

http://backpack.tf/profiles/76561198095433550#!/compare/1465603200/1465948800

http://imgur.com/a/TsxMv

Sale 2:

Sold for 447 keys + sweets? (more items were probably involved here)

http://backpack.tf/profiles/76561198095433550#!/compare/1465171200/1465257600

Notes:

Only 2 recent clean sales within the past few months but only one being valid. All other recent sales involved duped versions.

Conclusion:

One valid sale at 900 keys. Taking a final flat price of 900 keys.

Feel free to support/counter my suggestion!