| Covers listed | |
| 1952: | January, February, |
| 1953: | January, February, March, April, May, June, July, August, September, October, October, November, |
| 1954: | January, February, March, April, May, June, July, August, September, October, |
| 1955: | January, February, March, April, May, |
| 1956: | February, April, May, June, August, |
| 1958: | April, October, November, December, |
