Watch List notes:

Santo Domingo, Dominican Republic, billon blanca, Charles-Joanna, assayer F, extremely rare, ex-Rudman. S-SD1; KM-unl; CT-215. 0.65 grams. Even rarer than the 2 maravedis (see previous lot) is this next denomination down (which Estrella mistakenly called a copper 1 maravedi, rectified by archival research by Proctor presented in 2010 and 2017), of which only eight are known, this clearly not the best example (holed and chipped, but at least with clear full crowned R (Gothic K) flanked by mintmark S-P and crowned Y flanked by assayer F (the punch more like an E) and denomination I, XF for actual wear, with copper color on one side and brass color on the other. Pedigreed to the Isaac Rudman collection.
(250 - 375 USD)