Marcel Boucher, who trained with Cartier in Paris and moved to the United States in the 1930s, had his designs made in Mexico during WWII when silver was used in the war effort. He named those pieces Parisina. This is a beautiful flower necklace with shiny sterling and then had the inside of the petals oxidized. Invisible box clasp. Press on the center of the petal that has the Parisina plaque. The necklace is 17" long and just over 3/4". Weighs 2.3 ounces. Marked Parisina, Sterling, Mexico. Excellent vintage condition.