Space Voyage Covers were made by Robert Rank.
Here are the year-by-year issues of Space Voyage Covers in my collection:
1969 | 1970 | 1971 | 1972 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988
Also see these cover brands which are very similar:
NEW
Click here to see Space Voyage printer samples and mockups from the 1970s / 1980s / 1990s.