^Lot 596 Potosi, Bolivia, cob 1/4 real, Philip III, no assayer, shield around castle without crown, small lio

Potosi, Bolivia, cob 1/4 real, Philip III, no assayer, shield around castle without crown, small lion without shield, rare, ex-Ugaz. KM-unl; Cal-unl. 0.52 gram. Toned, salvaged Fine with bold full castle in shield with border of dots above (no crown), full small lion within nearly full border of dots (no shield), full and inexplicable "E R 8 1" in reverse legend, mysterious and fascinating! Pedigreed to the Jorge Ugaz collection.