| Covers listed |
|
| 1891: | #1 / , |
| 1910: | #1020 /27 November, |
| 1936: | #2348 / , |
| 1957: | #2349 / , |
| 1958: | #2389 / , #2390 / , #2400 /3 May, #2401 / , #2429 / , #2431 / , #2434 / , |
| 1959: | #2439 / , #2479 /7 November, #2484 / , |
| 1965: | #2749 / , #2752 / , #2760 / , #2762 / , #2763 / , #2765 /1 May, #2765 / , #2786 / , #2790 / , #2794 /20 November, #2797 / , #2796 /4 December, |
| 1966: | #2807 /19 February, #2810 /12 March, #2816 /23 April, #2820 /21 May, #2821 /28 May, #2824 /18 June, #2838 /24 September, #2842 /22 October, #2845 / November, |
| 1967: | #2855 /21 January, #2856 /28 January, #2877 /24 June, #2892 /7 October, #2895 /28 October, #2897 /11 November, #2899 /25 November, #2904 /30 December, |
| 1968: | #2907 / January, #2919 /13 April, #2921 /27 April, |
| 1969: | #2977 /24 May, #2978 /31 May, #3003 /22 November, |
| 1970: | #3015 /14 February, #3019 /14 March, #3024 /18 April, #3035 /4 July, #3037 /18 July, #3039 /1 August, #3044 / September, 19 December, |
| 1971: | #3062 /9 January, #3069 /27 February, #3073 /27 March, #3080 /15 May, #3084 /12 June, #3087 /3 July, #3091 /31 July, #3101 /9 October, #3112 /24 December, |
| 1972: | 22 April, 29 July, #3129 / , #3133 / , #3135 / , #3142 / , #3143 / , #3152 / , #3160 / , |
| 1973: | #3175 /10 March, #3177 /24 March, #3179 /7 April, #3182 /28 April, #3184 /12 May, #3186 /24 May, #3187 /31 May, #3196 /4 August, #3204 /29 September, #3206 /13 October, #3213 /1 December, #3215 /15 December, |
| 1974: | #3220 /19 January, #3223 /9 February, #3227 /9 March, #3232 /13 April, #3234 /27 April, #3237 /18 May, #3240 /8 June, #3243 /29 June, #3244 /6 July, #3245 /13 July, #3248 /3 August, #3252 /31 August, #3256 /28 September, |
| 1981: | #3583 /31 December, |
| 1988: | #3584 /6 March, 20 November, |
| 1989: | 3 September, |
| 1992: | #3805 /31 May, 4 October, |
| 1995: | #3945 /5 February, April, |
| 1996: | #3993 /7 January, 21 January, 1 September, |
| 1997: | 20 April, |
| 1999: | 17 October, 24 October, 5 December, |
| 2000: | January, 19 March, #4215 /9 April, 23 April, #4233 /20 August, #4244 / , |
