MEXICO. Cob Real, ND (1542-48)-M G. Mexico City Mint. Carlos & Johanna. PCGS Genuine--Damage, EF Details. KM-9; Cal-66. Weight: 3.23 gms. Late Series. While given a details designation due to the various fine tooling marks and scratches on its fields, these are not easy to spot without magnification and the coin presents quite attractively overall. Both sides are well-struck with impressive centering that displays the legends in their entirety. The surfaces are bright with some deeper peripheral toning. An elegant example of the type, showcasing the high production quality at the still very new Mexico City mint.