This art deco inspired brooch is absolutely incredible.  I am unsure of its age but it is stamped Made in Austria.

All the beautiful crystals are intact and incredibly sparkly.  There is one tiny one missing but you cannot notice it.  The two large end ones both move when you touch them but that is the design of this piece.

There is a simple pin clasp at the back that is fully functioning.

The brooch is incredibly flat as you can see in the photo.  It measures approx 6cm x 4cm.