Vintage Addy Ronen Israel silver modernist brooch. The brooch measures approximately 9.2 x 3.2 cm and has a pin and rollover C clasp closure to the rear. It is marked "925 ADDY RONEN ISRAEL". Weight is 12 grams. It is in very good condition with small signs of wear commensurate with age.
 

Condition: Very good with small signs of wear commensurate with age.
Colour:Silver 
Metal: Sterling silver
Size: 9.2 x 3.2 cm approximately
Era: Estimated 1970's