Clump of five Mexico City, Mexico, cobs (two 8R and three 4R), encrusted as found. 98.34 grams total. Fabulous natural display with much white coral covering the top of a spread-out pile of solid and darkly toned coins, the bottom with much less coral, only some details visible but enough to identify the mint. Recovered from: Concepcion, sunk in 1641 off Hispaniola
Estimate: 700 - 1000 USD