We source material from reputable dealers that offer the purest metals so we can offer products that are superior in our niche. No two patina finishes are exactly alike. There will be mottling and various tones on each finish and given the nature of fine metals, such as Bronze, Copper, Steel, and Zinc, they will age and oxidize over time. Order samples so you can see and touch these beautiful finishes in person! Please note that not all finishes are available on every product. View product listings for options.