Watch List notes:

Potosi, Bolivia, cob 4 reales Heart, 1721 Y, unique, NGC XF 45, Practical Book of Cobs Plate Coin, Janson Plate Coin. Janson-C34.21; S-P43a; KM-unl; Cal-1148. 15.22 grams. A truly lovely coin, deeply struck and beautifully toned, precisely and intentionally oriented at a 45-degree angle with the axis of its otherwise classic Heart shape (perhaps to present the cross as an X instead), enabling two dates and all three mintmarks and assayers to be visible, neatly holed in the stem. Like all 4R Hearts known to us, this date is unique. Described in the Ponterio catalog as "quite possibly the finest heart shaped 4 Reales in existence," it is easy to see why it was chosen as plate coin for the type in both Sedwick and Janson. NGC #6284687-003. Plated on page 110 of Janson's La Moneda Circulante En El Territorio Argentino 1584-2019 (2020) and on pages 88 and 113 respectively of the 2nd (1990) and 3rd (1995) editions of Sedwick's The Practical Book of Cobs, and pedigreed to the Ponterio auction of March 1992 (lot 809) and the Swiss Bank Corp. auction of September 1997 (lot 2026).
($20000-40000)