This is a hard to find Cartier Sabona cuff bracelet made of 18k gold and copper.  These bracelets were retailed by Cartier in the 1970's and were purported to have protective, healing properties.  I don't know if that is true, but I do know you had to be one posh hippie to rock this cuff!  

Signed "Cartier" and "SABONA" with registration number and "18k" metal mark.  Measures 5/16" width (7mm).  Interior measures 2 3/8 x 2" and can be adjusted.  Weighs 27.7 grams.  Nice patina to copper which can be cleaned, but we leave it up to the buyer to decide!