Mystery Items - Do You Know What They Are?

There used to be an old television show where a mystery item was brought out and given to a panel of celebrities.  Each celebrity made up a story about what the item was, but only one really knew the correct answer.  A contestant had to guess which one was right to win money.  It was a fun show.  Little did I know that one day I'd be trying to figure similar mysteries out on my own.

Of course, some of this is my own fault.  I often see things that look interesting and buy them at antique malls and auctions.  And sometimes I just acquire them as parts of other lots.  So do you have any idea what these items are?

I purchased this piece at an antiques fair in a jewelry booth.  I think that it is possibly a belt buckle from the Victorian era.  It appears to be made of brass.  There are shallow prongs inside and a clasp at the bottom.  However, when you open the clasp, the back is hinged at the top rather than from the side. 

My second mystery of the day is possibly another buckle from the Art Deco era.  It's made of pot metal and covered with rhinestones.  The item is in three pieces and the central oval is hinged on each side.  On one side the rectangle has loops or bails where is appears that the item would be sown or attached to something.  On the other side, there are closed C-clasps, for want of a better term.

Any clues?