The range of alloys utilized is stunning: weathering steel for patina, marine-grade light weight aluminum for weight cost savings
https://www.scribd.com/document/1041492153/The-Legacy-of-Hand-Fabricated-Metal-Personalized-Leader-Boxes-Designed-to-Sustain-a-Century-231508
The variety of alloys used is sensational: weathering steel for patina, marine-grade light weight aluminum for weight cost savings, and duplex stainless for rust resistance in rough climates.