Product Description The Mission plate in antique pewter harkens to the Spanish Colonial period of the Western frontier, with an instantly recognizable square corner. Adding our Round Clear Crystal Knob, which features a circular shape that magnifies the beautiful facets underneath, only serves to bring the past alive. All Nostalgic Warehouse knobs are mounted on a solid (not plated) forged brass base for durability and beauty. From the Manufacturer The Mission plate in antique pewter harkens to the Spanish Colonial period of the Western frontier, with an instantly recognizable square corner. Adding our Round Clear Crystal Knob, which features a circular shape that magnifies the beautiful facets underneath, only serves to bring the past alive. All Nostalgic Warehouse knobs are mounted on a solid (not plated) forged brass base for durability and beauty.