This signed Los Castillo design 154 polka dot clamper is rare and very hard to find. I have always been on the hunt for this beauty. Hallmarked as shown with the old linear hallmark. The inside diameter is 2.25in. and it is best with a petite wrist. The height is 2.75in. and the weight is 63 grams of heavy repousse. The taper in the back measures 7/8th inches. No dents and well kept. A published design in MARGOT VAN VOORHEIS THE ART OF MEXICAN ENAMELWORK. This Mexican clamper is for all collectors who seek the very best.