The Paladin Contest prizes

1st prize
2nd prize
3rd prize
4th prize: Rogue merc setup (for a +3 merc)

And we have a Lidless Wall which can be exchanged for any of the other shields in case you prefer that over Steelclash or Tiamat's.

I traded for most of the higher level items (not in the channels though, but in marketplaces), or I got them donated, so I can't say much about their origin, but from my knowledge they are all unlikely to have been duped.