
1.		Aviso (ministério dos estrangeiros - Diário do governo n. º 33, de 10 de Fevereiro) Autor: Portugal Data Publicação: 1899
2.		Annual report of the : Postmaster-General of the United States for the fiscal year ended june 30, 1883 Data Publicação: 1883
3.		Annual report of the ... : Postmaster-General of the United States for the fiscal year ended june 30, 1893 Data Publicação: 1893
4.		Annual report of the : Postmaster-General of the United States for the fiscal year ended june 30, 1896 Data Publicação: 1896
5.		United States Official postal guide / Post Office Department Data Publicação: 1891
6.		Annual report of the : Postmaster-General of the United States for the fiscal year ended june 30, 1900 Data Publicação: 1900
7.		Annual report of the : Postmaster-General of the United States for the fiscal year ended june 30, 1880 Data Publicação: 1880
8.		Annual report of the Postmaster-General : of the United States for the fiscal year ended june 30, 1879 Data Publicação: 1879