Bell tower of Royal House of the Post Office (Real Casa de Correos) in Puerta del Sol in Madrid, Spain Stock Photo - Alamy
Palacio de correos de mexico hi-res stock photography and images - Page 2 - Alamy
50 Old Postage Stamps. Late 19th Century Early 20th Century - Etsy
Palacio Postal (Post Office) (Palacio de Correos de Mexico) in Mexico City. Early 20th century palace Stock Photo - Alamy
GUATEMALA; 1930s early AIR issue value used CORREOS 25c. Tulsa Mall
Palacio Postal (Post Office) (Palacio de Correos de Mexico) in Mexico City. Early 20th century palace Stock Photo - Alamy
EARLY SPAIN 25 CORREOS STAMP WITH SIGNIFICANT MISPERF ERROR | eBay
Mexico, Mexico City, Palacio de Correos de Mexico, Postal Palace of Mexico City, Correo Mayor, Main Post Office, Early 20th Century Construction, Centro Historico Stock Photo - Alamy
Vintage Stamp lot of 3, Republica Del Ecuador, Correos, early mid century | eBay
Vintage Stamp lot of 2, Correos De Bolivia, Aero, 1950s mid century, 1953-1954 | eBay
Set of 5 Early Air Mail Correos MEXICO STAMPS Vintage | eBay