Gold and shadow fill every inch of this breathtaking real-photo postcard of the Altar Mayor inside the Iglesia de Santa Prisca in Taxco, Guerrero, Mexico — one of the finest surviving examples of Mexican Churrigueresque baroque, where gilded saints, angels, and vine-like ornament cascade floor-to-ceiling in an almost hallucinatory density. Built between 1751 and 1758 with silver-mining wealth, Santa Prisca's retablo mayor is considered a masterwork of New World colonial art, and this early 20th-century photograph captures the altarpiece before later restoration work, preserving details now altered. The handwritten caption in white ink on the face reads "Altar mayor. Taxco Gro." — a period collector's notation that pins the card firmly to Guerrero state. Wooden pews march toward the sanctuary in the foreground, and a baroque side retablo is just visible at right, giving a rare sense of the full spatial drama of the nave.