Vintage Brass Pony Express St. Joe To Sacramento Belt Buckle 3 1/2″ Bronze Tone. This Vintage Brass Pony Express St. Joe To Sacramento Belt Buckle is a unique and nostalgic accessory for men. The bronze tone color and metal theme give it a classic, timeless look. Made of brass hardware and originating from the United States, this belt buckle captures a piece of history with its vintage design.