KM-161.5, 1897 Bolivia 50 centavos, CB essayer, Potosi mint (PTS mintmark in monogram); silver, reeded edge; despite greyish appearnce this is one of the better coins I have seen, usual weak strike (even late XIX century technology remained lacking) and wheeled rim with the soft flattened center this coin is in definite about uncirculated condition, a bit of the extra metal on the rims.