desc_issuer: Rio de Oro desc_denom: 50c desc_color: blkvio Used by 1 overprinted stamp: Rio de Oro postage 1908 10c blkvio d=King Alfonso XIII (1907) oc=red on=50c-blkvio unwmk Not used by any images. Matches 1 type: Rio de Oro postage 1907 50c blkvio issue=1907 d=King Alfonso XIII (1907) unwmk |