8 Reales Bolivian?

Unknown mintage, KM# 50. Value? about $150-$180 (or the amount a fool is prepared to give)
http://www.coinfactswiki.com/wiki/B..._JR_8_reales
Krause : Therefore, by royal decree of February 17, 1651, the design was changed to the quartered caslles and lions for the obverse and two crowned pillars of Hercules floating above the waves of the sea for the reverse. A new transitional series was introduced. In 1651·1652 followed by a new standard design in 1652 and as the last cob type continued on for several years along wlth the milled pillars and bust pieces from 1767 through 1773. In the final years under Charles III the planchet is compact and dumpy, very irregular and of poor style, contrasling sharply with their coun·
terpart denominations of the pillar and bust types.