You are looking at a Stunning Silver Brooch in the shape of a Star or Starfish
This is a beautifully Hand made designer piece with a charming leaves and bead cut work design
The reverse has a metal pin with a hook catch.

Measuring approx. just over 2"(5.3cm) max diameter  x 7mm deep to the back of the pin
It is marked to the back738 G PRoSA and an image. So I believe that this is 738 Gorham silver from America

In good condition with the normal minor marks and scuffs consistent with age and may need a final polish and comes in the bag you see in the photos.
Please look at the photos as they form part of the description 

An unusual designer brooch, perfect to add to your collection, wear for special occasions or buy as a gift for a friend.
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