Can I tell specifically what game something in my inventory actually is? (Dead Island Collection)

Hi all, Maybe a year or two ago I purchased something called "Dead Island Collection" and purchased it into my inventory. The steam store page for this item is gone. From memory I think it includes Dead Island, Dead Island Riptide, and a couple DLC fashion victim and survivor pack.

I've subsequently picked this game up in a humble bundle a few months ago and realize I now have this extra copy from way back.

As I mentioned, there is a "Dead Island Collection" listed on steamgifts that is this:
http://store.steampowered.com/sub/29177/
but the steam store page is no longer in existence. The description on my inventory only says "Includes 2 items: Dead Island: Riptide - Fashion Victim, Dead Island: Riptide - Survivor Pack" but I know that's not right. I'm wanting to make sure I list this properly to give away.

Is there a way if I can tell if what's in my inventory is actually the giveaway at the link shown? ( http://store.steampowered.com/sub/29177/ )

There's so many different Dead Islands I want to make sure I list it right. I appreciate any tips on this. thanks,