[H] Dwarfs!? [W] Offers

Would you consider TF2 keys or items

Where is the key from?
I have these games...:

• Cogs (tradeable)
• Future Wars
• Bunch of Heroes
• Alien Shooter
• A.R.E.S.: Extinction Agenda
• Beat Hazard
• Razor 2
• Commandos 3
• Trauma
• Making History
• Ironclads Collection

I'm trying to remember, I think I've already contacted with him and he has no longer the key.