| Covers listed | |
| 1955: | #5 /October, |
| 1957: | July, August, September, October, |
| 1958: | February, April, May, June, July, August, September, Vol 4 #11November, December, |
| 1959: | January, February, March, April, May, June, July/August, September, October, November, December, |
| 1960: | Vol 6 #1January, April, October, |
| 1961: | March, July, August, October, December, |
| 1962: | Vol 8 #1January, March, September, November/December, |
| 1963: | January, February, March, April, May, June, July, Vol 9 #8August, September, |
| 1964: | February, May, December, |
| 1965: | June, |
| 1966: | January, |
