SCAPIN-1830/11: JAPANESE OVERSEAS RADIOTELEPHONE SERVICE 1949/01/15

SCAPIN-1830/12: JAPANESE OVERSEAS RADIOTELEPHONE SERVICE 1949/07/05

SCAPIN-1830/2: JAPANESE OVERSEAS RADIOTELEPHONE SERVICE 1948/03/01

SCAPIN-1830/10: JAPANESE OVERSEAS RADIOTELEPHONE SERVICE 1948/11/10

SCAPIN-1830: JAPANESE OVERSEAS RADIOTELEPHONE SERVICE 1947/12/06

SCAPIN-2034: JAPANESE OVERSEAS RADIOTELEPHONE SERVICE 1949/07/27

SCAPIN-1830/3: JAPANESE OVERSEAS RADIOTELEPHONE SERVICE 1948/03/24

SCAPIN-1830/5: JAPANESE OVERSEAS RADIOTELEPHONE SERVICE 1948/05/24

SCAPIN-1830/1: JAPANESE OVERSEAS RADIOTELEPHONE SERVICE 1948/02/06

SCAPIN-1830/8: JAPANESE OVERSEAS RADIOTELEPHONE SERVICE 1948/07/09

SCAPIN-1830/6: JAPANESE OVERSEAS RADIOTELEPHONE SERVICE 1948/06/17

SCAPIN-1830/7: JAPANESE OVERSEAS RADIOTELEPHONE SERVICE 1948/07/02

SCAPIN-1830/9: JAPANESE OVERSEAS RADIOTELEPHONE SERVICE 1948/10/21

SCAPIN-2034/1: JAPANESE OVERSEAS RADIOTELEPHONE SERVICE 1949/10/21

SCAPIN-1900/5: INTERNATIONAL POSTAL SERVICE 1949/01/22

SCAPIN-1960: FOR SEAL RESEARCH IN JAPANESE COASTAL WATERS 1949/01/11

SCAPIN-1900/11: INTERNATIONAL POSTAL SERVICE 1949/07/27

SCAPIN-1309/1: RADIOTELEPHONE SERVICE BETWEEN THE UNITED STATES AND JAPAN 1947/08/01

SCAPIN-674: JAPANESE AIR COURIER SERVICE 1946/01/29

SCAPIN-2028: INTERNATIONAL HIGH FREQUENCY BROADCASTING SERVICE 1949/07/15

SCAPIN-1309: RADIOTELEPHONE SERVICE BETWEEN THE UNITED STATES AND JAPAN 1946/11/02

SCAPIN-1830/4: JAPANESE OVERSEA RADIO TELEPHONE SERVICE 1948/04/22

SCAPIN-2017: OPERATION OF JAPANESE WEATHER SERVICE 1949/06/16

SCAPIN-2069: OPERATION OF JAPANESE WEATHER SERVICE 1949/12/23

SCAPIN-1098: OPERATION OF JAPANESE WEATHER SERVICE 1946/08/01