NORTH KOREA (1977) Communication cooperation for Socialist countries. Specimen. Scott No 1659, KSC No 1649.
$5
NORTH KOREA (1979) World Telecomm Day. Specimen. Scott No 1807, KSC No 1827.
$5
NORTH KOREA (1981) World Telecomm Day. Specimen. Scott No 2073, KSC No 2096.
$5
NORTH KOREA (1983) World Telecomm year. Specimen. Scott No 2299, KSC No 2326.
$5
NORTH KOREA (1983) World Communications Year. Set of 3 (2 stamps + S/S) specimens. Scott Nos 2330-2, KSC Nos 2357-9.
$15
NORTH KOREA (1999) Asia-Pacific Telecommunications Union. Specimen. Scott No 3861, KSC No 3966.
$5
NORTH KOREA (1999) Asia-Pacific Telecommunications*. Block of 4 with color blue missing. KSC No 3967. Scott No 3861.
$60
NORTH KOREA (1999) Asia-Pacific Telecommunications*. Block of 4 with color black missing. KSC No 3967. Scott No 3861.
$60