Antique Map of Madrid (1883) — Juan Calvet, Plano Industrial y Comercial de MadridA fascinating and richly detailed industrial and commercial map of Madrid, published in 1883 by Juan Calvet. This map captures Madrid at the height of the 19th century, when the Spanish capital was undergoing rapid modernization and urban growth. At the center lies a meticulously engraved plan of the citys historic core, radiating outward toward the expanding boulevards, gardens, and railway connections that heralded Madrids transformation into a