I bought and unboxed 3 Salvaged Crate #50, one of the items I got from it was this.

Classified ads at the time of posting:

http://m.imgur.com/adz7QSz

http://backpack.tf/classifieds?item=Splendid+Screen&quality=11&tradable=1&craftable=1

1*17 refined

2*1 key

Unsold at 1 key and 2 refined (~1.1 keys):

http://www.tf2outpost.com/trade/27499211 (~1 week, poorly bumped)

Unsold at 1 key and 1 refined (~1.05 keys):

http://www.tf2outpost.com/trade/27487492 (~2 weeks)

Seller at 1 key:

http://www.tf2outpost.com/trade/27558493 (Young)

This is all I could find on Outpost that are valid at the time of posting this suggestion.