BOLIVIA, Potosí, cob 8 reales, 1629 T, denomination o-VIII, heavy-dot borders. S-P26; KM-19a; Cal-1454. 26.08 grams. Weakly struck XF/AU, just a trace of the tail of the 9 in date visible, bold mintmark and assayer showing, a bit crusty on the surfaces from probable burial.