This coincides with a broader European tradition of creating hand-cut lead crystal objects. Material & Craftsmanship. Composed of 24% lead oxide (PbO), this decanter qualifies as genuine lead crystal-a material prized for its brilliance, high refractive index, and ease of cutting? . Polish glassmakers, especially during the mid-century, standardized on this 24% PbO ratio to balance clarity, sparkle, and durability? . The design details-crosshatch/diamond pattern on the base, floral or star motifs, and a faceted stopper-reflect meticulous hand-cut artistry?? . The style carries an Art Nouveau sensibility, especially noted in some listings that describe the shape as “diamond” and “etched”? . Approximately 9-1/2″ tall x 7″ wide (across the bottom). Weighs 3 lbs 2 oz. Excellent vintage condition with no chips, cracks, or damages. Further details please see all the pictures.