I have these, not for 1 ref though but we can discuss my prices if you are interested.
Frederic - Resurrection of Music - 3 Refs.
Not The Robots - 3 Refs.
ARMA Tactics - 2 Refs.
Saturday Morning RPG - 3 Refs.
Bardbarian - 3 Refs.
Knights of Pen and Paper +1 Edition - 3 Refs.
Millennium - A New Hope - 2 Refs.
Ref is Refined Metal it is a Team Fortress 2 item
In steamtrades.com people using Ref, Key, ToD (Tour of Duty Ticket) as virtual payment to buy and sell games
Ref is a small money
TF2 Key / DotA2 Key / CS GO Key is the bigger money
But the most common used is TF2 Key --> Mann. Co Supply Crate Key
About the value of Keys u can check Steam Market
About the value of Ref, u can check here ----> http://scrap.tf/
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And.. I forget to say, when make trade with someone (Steam Profile set to Private) do not accept, coz most of case it is done by scammers & impersonators. Double check the steamtrades profile with steam account
I Have
Musaic Box - 1 Ref
Thomas Was Alone - 1 Ref
And Yet It Moves - 1 Ref
Planets Under Attack - 1 Ref
Aura: Fate of Ages - 1 Ref
Post your offers.any game for 1 ref