Rocky Mountain Hardware. The Briggs Collection represents a complete line of door hardware and accessories that combine artistic hand-carved designs and sand-casting expertise. Made from recycled art-grade bronze, each piece features a range of historical inspirations from Moroccan grates to 19th-century cathedrals. Available in nine patina finishes, the Briggs Collection includes thumblatch, lever, and knob sets; patio, sliding, and lift-and-slide sets; multipoint swinging and sliding door sets; and push/pull, dummy, passage, and privacy sets. 888.788.2013.