| Covers listed | |
| 1937: | #1 /July, #2 /August, #3 /September, #4 /October, November, December, |
| 1938: | January, February, March, April, May, June, July, August, September, October, November, December, |
| 1939: | January, February, March, Vol 2 # 10 April, May, June, July, |
