Margot de Taxco was a very organized person. Her designs are all numbered. This bracelet was her 21st design, often called wings. The bracelet is 3/4" tall and 7" interior circumference. Closes with a box clasp. Safety chain. Weighs 1.2 ounces. Marked Margot de Taxco, 5120, 16 eagle, Made in Mexico Sterling circle. Excellent vintage condition.