1948-12-21: Carlos Martinez Silva, Birth Cent.

1948-12: Natural Resources

1948-07-21: Tourism Promotion, Country motifs













1948-06-30: National Observatory, Bogotá

1948-05-29: Simón Bolivar Monument

1948-05: Postal Savings Bank of Colombia




1948-04-02: International Pan-American Conf., Bogotá. 9th Ed.









1948: Obligatory Tax - Surcharge on Savings Bank Stamps




1948: Ministry of Post and Telegraphs Building



1948: Personalities



1948: Red Cross


1948: Postal tax stamps
