Argentina Scott #C105 FIRST DAY COVER Argentina and Antarctica $$ 378222
Argentina Scott #977 FIRST DAY COVER National Meteorological Service $$ 378214
Argentina Scott #977 FIRST DAY COVER National Meteorological Service $$ 378212
Argentina Scott #677 FIRST DAY COVER Int'l Geophysical Year IGY $$ 378208
Denmark Scott #936-937 FIRST DAY COVER Europa 1991 Space $$
Marshall Islands Scott #C21 MNH BLOCK Astronaut and Space Shuttle CV$3+
Mongolia Scott #1704 MNH S/S Cosmos Map CV$3+