This is Los Ballesteros old pre-1948 mark pictured. The weight of this unusual domed repousse cuff is 65 grams. Unlike many open backed repousse this piece has been framed with a silver trim all around making it extremely sturdy. The gap is almost 1.5in. It has a warm patina and will be left to the buyer to make lighter if they wish. I love the bubble like form that it has and it feels like Betty Rubble (rock and pebble design) meets Twiggy (mod pop art). This is a statement piece at 1.75in. tall. Extremely rare and loads of fun. Condition is absolutely with no issues and that shows how well it it made and survived thru time. Really a great piece that is published in MEXICAN SILVER by Penny Morrill and Carole Berk.