| Covers listed | |
| 1931: | #35 /30 August, |
| 1933: | #51 / December, |
| 1934: | #18 / , |
| 1936: | #36 / , |
| 1939: | #17 / , #44 /4 November, |
| 1955: | #3 / , |
| 1956: | #3 / , #12 / , |
| 1957: | #24 /17 June, |
| 1958: | #29 / , #52 /29 December, |
| 1959: | #2 /12 January, |
| 1960: | #42 /17 October, |
| 1961: | #32 / , |
