SHIPWRECK CONCEPCION 1641, Mexico 4 Reales set in 14k. Gold.
Denomination - 4 Reales COB
Mint - oM, Mexico City
Assayer - "P", c.1634-1641
Date - nv.
Reign - Philip IV, 1621-1665
Grade - Choice I
 
Weight - 17.7 grams total weight.  Coin is 13.5 grams, 4.2 grams 14K Gold.
TTI-368