Colombian Republic Insured Letter Stamp (50 centavos) from 1870

Colombian Republic Cencuenta Centavos Insured Letter Stamp, 1870

Colombian Republic Insured Letter Stamp (50 centavos) from 1870

Tolima, Colombian Republic Insured Letter Stamp (10 centavos) from 1879

Tolima, Colombian Republic Diez Centavos Insured Letter Stamp, 1879

Tolima, Colombian Republic Insured Letter Stamp (10 centavos) from 1879