The 1930's Alloy Agate Marble Flame Swirl in Amber Brown and Gray is a vintage machine-made marble measuring .60.” Originating from the United States during the golden era of marbles, this Alley Agate marble showcases the craftsmanship and aesthetic of that time period. Perfect for collectors or those seeking unique decorative pieces, this marble captures the essence of 1930s American artistry and design.