Mexico City, Mexico, cob 1/2 real, 172_ (J), unique, NGC XF 40, finest and only example in NGC census. S-unl; KM-unl; Cal-unl. 1.36 grams. Full and bold date that is CLEARLY blank where the last digit should appear above the crown (first example we have seen or heard of), off-center strike, toned all over. Pedigreed to the Clyde Hubbard Collection, with his original tag/envelope.
Estimate: 350 - 700 USD