| Covers listed |
|
| 1899: | 1 April, 17 June, 24 June, 1 July, 8 July, 15 July, 22 July, 12 August, 26 August, 4 November, |
| 1906: | 2 June, 22 September, 6 October, 10 November, 24 November, 1 December, |
| 1907: | 2 February, 24 August, 21 September, 12 October, |
| 1908: | 22 February, 26 December, |
| 1909: | 10 July, |
| 1910: | 14 September, 28 September, 5 October, 19 October, |
| 1911: | 4 January, 22 March, 5 April, 7 June, 2 August, 13 September, 27 December, |
| 1912: | 10 April, 17 April, 1 May, 15 May, 22 May, 5 June, 26 June, 3 July, 10 July, 7 August, 14 August, 21 August, 28 August, 9 October, 6 November, 11 December, 18 December, |
| 1913: | 29 January, 12 March, 19 March, 16 July, 30 July, 27 August, |
| 1914: | 29 April, 29 July, 7 October, |
| 1915: | 18 August, |
| 1916: | 1 January, 19 February, 13 May, 8 July, 22 July, 5 August, 19 August, 9 September, 23 September, 30 September, 7 October, 4 November, 18 November, 25 November, 16 December, |
| 1917: | 10 February, 31 March, 8 September, 3 November, |
| 1918: | 23 March, |
| 1919: | 11 January, 5 March, 25 March, 1 April, 8 April, 22 April, 29 April, 20 May, 3 June, 16 October, 20 November, 25 December, |
| 1920: | 5 February, 6 March, 10 April, 26 June, 21 August, |
| 1921: | 1 January, 16 April, 30 April, 12 November, |
| 1922: | April, |
