This $4 denomination from Mexico’s iconic México Exporta series highlights the country’s construction-materials industry, a major export sector in the 1970s. Issued as part of the long-running definitive set featuring stylized industrial themes, it displays a modern geometric tile pattern with a white palm-frond overlay—hallmarks of the series’ bold graphic design by R. Davidson (credited at bottom left). The right side carries the famous eagle emblem of México Exporta, used across the entire series, along with the high-value $4 inscription for export-rate mail. Printed by T.I.E.V., this issue is sought after for its clean layout, strong color contrast, and its place within one of Latin America’s most collectible definitive sets.