| Covers listed | |
| 1927: | July, |
| 1930: | October, |
| 1931: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1932: | January, February-March, April-May, June-July, August/September, |
| 1933: | Summer, |
| 1934: | Spring, Autumn, December, |
| 1936: | Christmas, |
| 1937: | Spring, Summer, Vol 13 #5Christmas, ca December, |
| 1938: | Spring, Summer, Autumn, Christmas, ca December, Winter, |
| 1939: | Spring, Summer, Winter, as December, ca December, |
| 1940: | Summer, as December, |
| 1941: | Summer, as December, |
