JAPAN
QSLs from KDD (Kokusai Denshin Denwa) Japan's Overseas Radio and Cable System:
JBA on 15 December 1954 on 6.900 MHz in Yamata. Power was 5 kw.
JBA-2 on 19 January 1955 on 10.105 MHz in Yamata. Power was 5 kw.
JBF-5 on 17 December 1954 on 17.6415 MHz in Nazaki. Power was 5 kw.
These QSLs were from KDD, a major point-to-point service from Japan.