Issued 1.7.1971 SG1647d-1467e, 1648 and 1649

Issued 17.4.1971 SG1890

Issued 23.1-5.6.1971 SG1908-1910

Issued 20.2.1971 SG1911

Issued 6.3.1971 SG1912

Issued 6.3-16.10.1971 SG1913-1918

Issued 27.3.1971 SG1919

Issued 10.4.1971 SG1920

Issued 24.4.1971 SG1921

Issued 8.5-18.9.1971 SG1922-1924

Issued 8.5.1971 SG1925-1926

Issued 29.5.1971 SG1927

Issued 5.6.1971 SG1928

Issued 12.6-3.7.1971 SG1929-1933

Issued 28.8.1971 SG1934

Issued 16.10.1971 SG1935

Issued 13.11.1971 SG1941

Issued 11.12.1971 SG1942-1943