MEXICO. 4 Reales, 1844-GCMP. Guadalupe y Calvo Mint. PCGS FINE-15.KM-375.3. VERY RARE date and denomination. Typically the 4 Reales is the rarest denomination of silver coinage. Coupled with the rarity of the date (approximately 3-4 pieces known) as well as being from a rare mint. A well circulated example with few trivial marks received during its time in circulation. Otherwise a wholesome example with light attractive tone from about 7 to about 12 oclock on the obverse.