Front of an official folded cover sent from PUERTO PRÍNCIPE to Habana on 5/MAR/1832, with red 2-line mark and manuscript "112" rating, VF quality! (Image)

Circa 1834, front of an official folded cover sent from PUERTO PRÍNCIPE to Habana, with red 2-line mark + "94" rating (black), VF! (Image)

Official folded cover sent from PUERTO PRÍNCIPE to Habana on 23/JUN/1837, nice postal and rating marks, fine quality! (Image)

Official folded cover sent (circa 1847) from HABANA to Puerto Príncipe, with dispatching blue datestamp, "80" rating and arrival backstamp, VF quality! (Image)

Front of an official folded cover sent from PUERTO PRÍNCIPE to Habana on 27/DE/1848, with green datestamp + "166" rating (black), VF! (Image)

Front of an official folded cover sent from PUERTO PRÍNCIPE to Habana on 16/OC/1850, with green datestamp + "100" rating, VF! (Image)

Official folded cover sent from CÁRDENAS to Habana on 18/FE/1854 with interesting postal marks, VF quality! (Image)

Official folded cover sent from HABANA to Puerto Principe on 12/SE/1856, with "36" rating and arrival backstamp, VF! (Image)

Front of an official folded cover sent from NUEVITAS to Puerto Principe on 20/NO/1856, with dispatching datestamp and "112" rating, very nice! (Image)

Official folded cover sent from LOS PALACIOS to San Cristobal on 31/AU/1858 with interesting postal marks, VF quality! (Image)

Official folded cover sent from REMEDIOS to Habana on 25/SE/1858 with interesting postal marks, VF quality! (Image)