SESSION II: Thursday, October 15, 2009, 4:30 p.m. SILVER COBS OF MEXICO CITY, MEXICO Charles-Joanna “Early Series” 684. Mexico City, Mexico, 4 reales, Charles-Joanna, “Early Series,” oMo to left, oPo to right. S-M4, KM-17, CT-74. 11.9 grams. Very darkly toned (uncleaned), with pristine pillars side but heavily corroded shield side, scarce first coinage of the New World. Pedigreed to the Mark Bir collection. Estimate: $300$450. Charles-Joanna “Late Series”
685. Mexico City, Mexico, 4 reales, Charles-Joanna, “Late Series,” oM to left, L to right, encapsulated PCGS AU-53. S-M9, KM-18, CT-85. Lustrous (no toning), typically nice strike with particularly bold legends, unusual to see in a slab (and with such a high grade). Pedigreed to the Mark Bir collection. Estimate: $500-$750.
687. Mexico City, Mexico, 2 reales, Charles-Joanna, “Late Series,” M to left, L to right. S-M9, KM-12, CT-116. 6.7 grams. Well-detailed AXF with no toning. Pedigreed to the Mark Bir collection. Estimate: $175-$250.
688. Mexico City, Mexico, 1 real, Charles-Joanna, “Late Series,” oM to left, O to right. S-M10, KM-9, CT-150. 3.4 grams. Typically well-detailed XF with attractively contrasting toning. Pedigreed to the Mark Bir collection. Estimate: $100-$150.
686. Mexico City, Mexico, 4 reales, Charles-Joanna, “Late Series,” M to left, G to right. S-M2, KM-18, CT-81. 13.3 grams. Broad, round planchet with full details, shield side slightly doubled, richly toned XF. Pedigreed to the Mark Bir collection. Estimate: $350-$500.
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689. Mexico City, Mexico, copper 4 maravedís, CharlesJoanna, “Late Series.” KM-3.3, CT-203. 10.2 grams. Scarce this nice (uncorroded), VF with dark fields beneath lighter high points, slightly off-center strike. Pedigreed to the Mark Bir collection. Estimate: $225-$350.
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