Pictures & Maps from the Report on the progress of Civil Aviation 1938.
Pictures from annual report 1980/81 Zambia.
Post office & Telegraph department 1885, 1886, 1887, 1889, 1891.
Post office department Annual report 1986.
Postal map of India. Text in Hindi.
Relatorio e contas da gerencia de 1931.
Report of the Post Office department, 1909-1922.
China Ministry of Communications Directorate General of Posts Report on the Chinese Post Office for the 10th year of Chung-Hua Min-Kuo (1921) with which is incorporated an historical survey of the quarter-century (1896-1921).
Report on the general post office, Hong Kong, for the year 1916-1939.
China Imperial Maritime Customs: Report on the Working of the Imperial Post Office - 1st Year of Hsuan Tung (1909) Being Part 1(B.) of Returns of Trade and Trade Reports for 1909.
St Martin's Le Grand Volume 8, United States Post Office, Report June 1897
Sudan ministry of communications department of post & telegraphs, 1957-58