
2c brown 'Central American Conference' UNISSUED ESSAY stamp, imperf on gummed paper. Produced by 'B. Zadik, Guatemala City'. (Listed in Guatemala 2 handbook page 588)
2c brown 'Central American Conference' UNISSUED ESSAY stamp, imperf on gummed paper. Produced by 'B. Zadik, Guatemala City'. (Listed in Guatemala 2 handbook page 588)