Why This Style Matters Preserving the Clay's Texture: Leaving the red clay raw and unglazed was a deliberate artistic choice. It emphasizes the deep, earthy texture of the hand-carved relief lines. The "Almacenes San José" Tradition: This exact combination of unglazed terracotta, black accent paint, and an incised country mark matches the classic mid-to-late 20th-century artisan market traditions of Havana.