Not THAT outdated, but this will do.

Sale 1

Sold for 60 keys

http://backpack.tf/profiles/76561198028179754#!/compare/1471737600/1471824000

http://www.tf2outpost.com/trade/28423052 ----- Relisted many times

http://www.tf2outpost.com/trade/28432098

http://www.tf2outpost.com/trade/28381033 ----- B/O was 75 keys here

=======> 60 keys

======================================================

Sale 2

Quicksold for 48 keys

http://backpack.tf/profiles/76561198023010221#!/compare/1468972800/1469059200

http://www.tf2outpost.com/trade/28353063 ----- No B/O here, but it was relisted many times in a short time with different prices. Owner had it for a few days only.

=======> 48 keys (qs)

======================================================

Sale 3

No idea

http://backpack.tf/profiles/76561198023010221#!/compare/1468454400/1468540800

http://backpack.tf/profiles/76561198240008756#!/compare/1453276800/1468540800

=======> Not using

======================================================

Couldn't find other sales.

Sellers

- No sellers at the time.

Summary

- Sales for 60 and 48 (qs).

Going with 60 keys. Criticism appreciated!