1840 Issue One Penny Black, One Penny Red Plates Registered in 1840 – Plates 1-10 Plate 1a in BlackPlate 1b in BlackPlate 1b in RedPlate 2 in BlackPlate 2 in Red April 27, 1840 to December 11, ,000 April 27, 1840 to December 11, ,000 April 27, 1840 to December 11, ,000 April 27, 1840 to November 19, ,000 April 27, 1840 to November 19, ,000 Plate 3Plate 4Plate 5 in BlackPlate 5 in Red May 9, 1840 to October, ,000 January 27, 1840 to January 9, ,000 January 27, 1840 to November 12, ,000 January 27, 1840 to November 12, ,000 Plate 6Plate 7Plate 8 in BlackPlate 8 in Red January 27, 1840 to January 9, ,000 January 27, 1840 to January 9, ,000 January 27, 1840 to September 8, ,000 January 27, 1840 to September 8, ,000 January 27, 1840 to October 7, ,000 January 27, 1840 to October 7, ,000 January 27, 1840 to February 21, ,000 January 27, 1840 to February 21, ,000 Pre-Provisional January 27, 1840 to February 21, ,000 Plate 9 in BlackPlate 9 in RedPlate 10 in Black Plate 10 in Red State 1 Plate 10 in Red State 2

1841 Issue One Penny Red, Provisional Black Printing Plates Registered in 1841 – Plates Plate 12 February 25, 1841 to January 15, ,000 Plate 13 April 27, 1841 to July 15, ,000 Plate 14 April 27, 1841 to September 8, ,000 Plate 15 January 27, 1841 to February 21, ,000 Plate 17Plate 18 September 21, 1841 to March 18, ,000 September 21, 1841 to March 18, ,600 Plate 19 November 3, 1841 to October 7, ,000 Plate 11 was registered on January 27, 1841 and printings in red commenced two days later. A provisional printing of 700 sheets in black was performed on February 1 and 2, The following day printings in red were resumed. Additionally, as a trial, 8 sheets were printed on Dickenson Silk Thread paper. Plate 11 in Red January 27, 1841 to January 15, ,000 Plate 11 in Red January 27, 1841 to January 15, Dickenson Silk Thread Plate 16 July 23, 1841 to February 21, ,000 Plate 11 in Black January 27, 1841 to January 15, Plate 20Plate 21 November 15, 1841 to October 7, ,000 December 11, 1841 to February 21, ,000 Plate 22 December 30, 1841 to February 21, ,000

1841 Issue One Penny Red Plates Registered in 1842 – Plates Plate 25 March 17, 1842 to January 27, ,000 Plate 26 June 22, 1842 to January 27, ,000 Plate 27 September 5, 1842 to October 7, ,000 Plate 28Plate 29 September 14, 1842 to September 16, ,000 November 14, 1842 to August 18, ,000 Plate 24 March 4, 1842 to August 18, ,000 Plate 23 January 18, 1842 to February 21, ,000 Plate 30 December 6, 1842 to August 18, ,000

Plate 36Plate 37 June 7, 1843 to February 27, ,000 July 7, 1843 to February 17, , Issue One Penny Red Plates Registered in 1843 – Plates Plate 31 January 27, 1843 to September 16, ,000 Plate 32 February 7, 1843 to September 16, ,000 Plate 33 February 20, 1843 to October 7, ,000 Plate 34Plate 35 June 7, 1843 to June 25, ,000 June 7, 1843 to February 27, ,000 Plate 38Plate 39 July 26, 1843 to June 25, ,000 October 2, 1843 to June 25, ,000 Plate 40Plate 41 October 17, 1843 to June 25, ,000 November 6, 1843 to June 25, ,000

Plate 47Plate 48 May 24, 1844 to February 27, ,000 June 19, 1844 to April 1, , Issue One Penny Red Plates Registered in 1844 – Plates Plate 42 January 23, 1844 to June 25, ,000 Plate 43 January 23, 1844 to February 27, ,000 Plate 44 February 29, 1844 to April 1, ,000 Plate 45Plate 46 February 29, 1844 to February 27, ,000 May 4, 1844 to February 22, ,000 Plate 49Plate 50 September 12, 1844 to February 27, ,000 September 12, 1844 to February 27, ,000 Plate 51Plate 52 December 3, 1844 to April 1, ,000 December 19, 1844 to April 1, ,000

Plate 56 February 25, 1845 to April 1, ,000 Plate 57 May 7, 1845 to April 1, ,000 Plate 58 May 9, 1845 to April 1, ,000 Plate 59Plate 60 June 25, 1845 to April 1, ,000 June 25, 1845 to May 15, , Issue One Penny Red Plates Registered in 1845 – Plates Plate 53 January 7, 1845 to April 1, ,000 Plate 54 January 25, 1845 to April 1, ,000 Plate 55 February 7, 1845 to April 1, ,000 Plate 61Plate 62 August 14, 1845 to May 15, ,000 August 14, 1845 to May 15, ,000 Plate 63Plate 64 September 2, 1845 to May 15, ,000 December 3, 1845 to May 15, ,000

Plate 66 February 2, 1846 to May 15, ,000 Plate 67 April 17, 1846 to May 15, ,000 Plate 68 April 17, 1846 to May 15, , Issue One Penny Red Plates Registered in 1846 – Plates Plate 65 February 2, 1846 to May 15, ,000 Plate 71Plate 72 October 21, 1846 to December 2, ,000 October 21, 1846 to December 2, ,000 Plate 69Plate 70 June 8, 1846 to December 2, ,000 June 30, 1846 to December 2, ,000

Plate 74 January 14, 1847 to December 2, ,000 Plate 75 April 19, 1847 to December 2, ,000 Plate 76 April 19, 1847 to December 2, , Issue One Penny Red Plates Registered in 1847 – Plates Plate 73 January 14, 1847 to December 2, ,000 Plate 77 April 19, 1847 to December 2, ,400

Plate 79 January 12, 1848 to December 2, ,000 Plate 80 January 12, 1848 to March 6, ,800 Plate 81 January 12, 1848 to March 6, ,400 Plate 82Plate 83 January 12, 1848 to March 6, ,400 January 12, 1848 to March 6, , Issue One Penny Red Plates Registered in 1848 – Plates Plate 78 January 12, 1848 to December 2, ,400 Plate 84Plate 85 October 11, 1848 to March 6, ,000 October 11, 1848 to March 6, ,600 Plate 86Plate 87 October 11, 1848 to March 6, ,400 October 11, 1848 to March 6, ,400

Plate 90 May 24, 1849 to March 6, ,000 Plate 91 May 24, 1849 to October 22, ,200 Plate 92 May 24, 1849 to March 10, ,400 Plate 93Plate 94 December 6, 1849 to March 10, ,600 December 6, 1849 to October 22, , Issue One Penny Red Plates Registered in 1849 – Plates (Plate 95 Registered Late) Plate 88 March 20, 1849 to March 6, ,300 Plate 89 March 20, 1849 to March 6, ,200 Plate 95Plate 96 January 7, 1850 to October 22, ,800 December 6, 1849 to October 22, ,600 Plate 97Plate 98 December 6, 1849 to March 10, ,000 December 6, 1849 to October 22, ,200

1841 Issue One Penny Red Plates Registered in 1850 – Plates Plate 101 February 25, 1850 to March 10, ,000 Plate 102 June 12, 1850 to March 10, ,200 Plate 103 June 12, 1850 to March 10, ,800 Plate 104Plate 105 June 12, 1850 to March 10, ,200 June 12, 1850 to October 22, ,000 Plate 100 February 25, 1850 to March 10, ,200 Plate 99 January 7, 1850 to March 10, ,000 Plate 106 June 12, 1850 to October 22, ,000

Plate 118Plate 119 May 20, 1851 to May 26, ,800 May 20, 1851 to May 26, ,200 Plate 120Plate 121 May 20, 1851 to May 26, ,000 May 20, 1851 to May 26, ,400 Plate 111 January 1, 1851 to October 22, ,800 Plate 112 January 1, 1851 to October 22, ,400 Plate 113 February 26, 1851 to October 22, , Issue One Penny Red Plates Registered First Half of 1851 – Plates Plate 114Plate 115 February 26, 1851 to October 22, ,200 February 26, 1851 to October 22, ,200 Plate 116Plate 117 May 20, 1851 to May 26, ,800 May 20, 1851 to May 26, ,600 Plate 107Plate 108 January 1, 1851 to March 10, ,800 January 1, 1851 to October 22, ,200 Plate 109Plate 110 January 1, 1851 to October 22, ,800 January 1, 1851 to October 22, ,400

Plate 129 September 23, 1851 to November 3, ,800 Plate 130 September 23, 1851 to November 3, ,800 Plate 131 September 23, 1851 to November 3, , Issue One Penny Red Plates Registered Second Half of 1851 – Plates Plate 124 July 25, 1851 to May 26, ,600 Plate 125 July 27, 1851 to May 26, ,600 Plate 126 September 23, 1851 to May 26, ,000 Plate 127Plate 128 September 23, 1851 to May 26, ,200 September 23, 1851 to May 26, ,800 Plate 123 July 25, 1851 to May 26, ,600 Plate 122 July 25, 1851 to May 26, ,600

Plate 145Plate 146 June 4, 1852 to June 13, ,400 June 4, 1852 to June 13, ,800 Plate 147Plate 148 June 4, 1852 to November 3, ,600 June 4, 1852 to June 13, , Issue One Penny Red (Alphabet II) Plates Registered First Half of 1852 – Plates Plate 141Plate 142 April 17, 1852 to November 3, ,000 April 17, 1852 to June 13, ,800 Plate 143Plate 144 April 17, 1852 to November 3, ,600 June 4, 1852 to June 13, ,000 Plate 132Plate 133 February 6, 1852 to November 3, ,400 February 6, 1852 to November 3, ,400 Plate 134Plate 135 February 6, 1852 to November 3, ,000 February 6, 1852 to November 3, ,400 Plate 136 February 6, 1852 to November 3, ,800 Plate 137 February 6, 1852 to November 3, ,800 Plate 138 April 17, 1852 to November 3, ,400 Plate 139 April 17, 1852 to November 3, ,800 Plate 140 April 17, 1852 to November 3, ,600

Plate 151 July 27, 1852 to June 13, ,600 Plate 152 July 27, 1852 to August 24, ,000 Plate 153 July 27, 1852 to June 13, ,800 Plate 154Plate 155 July 27, 1852 to June 13, ,600 September 16, 1852 to August 24, ,000 Plate 149 July 27, 1852 to June 13, ,000 Plate 150 July 27, 1852 to June 13, ,000 Plate 156Plate 157 September 16, 1852 to June 13, ,000 September 16, 1852 to February 8, ,000 Plate 158 September 16, 1852 to June 13, ,800 Plate 159 September 16, 1852 to June 13, ,600 Plate 160 September 16, 1852 to August 24, , Issue One Penny Red (Alphabet II) Plates Registered Second Half of 1852 – Plates

Plate 174Plate 175 July 20, 1853 to August 24, ,000 July 20, 1853 to August 24, ,000 Plate 176Plate 177 July 20, 1853 to February 8, ,500 July 20, 1853 to February 8, , Issue One Penny Red (Alphabet II) Plates Registered in 1853 – Plates Plate 170Plate 171 April 18, 1853 to August 24, ,000 April 18, 1853 to August 24, ,000 Plate 172Plate 173 April 18, 1853 to August 24, ,000 July 20, 1853 to February 8, ,000 Plate 161Plate 162 January 14, 1853 to August 24, ,000 January 14, 1853 to August 24, ,000 Plate 163Plate 164 January 14, 1853 to February 8, ,000 January 14, 1853 to August 24, ,000 Plate 165 January 14, 1853 to August 24, ,000 Plate 166 January 14, 1853 to February 8, ,000 Plate 167 April 14, 1853 to August 24, ,000 Plate 168 April 18, 1853 to August 24, ,000 Plate 169 April 18, 1853 to August 24, ,000

1840 Issue Two Pence Blue Plates Registered in 1840 – Plates 1-2 Plate 2 July 18, 1840 to February, , Issue Two Pence Blue (White Lines Added) Plate Registered in 1841 – Plate 3 Plate Registered in 1840 – Plate 4 November 29, 1849 to ,000 Plate 1 May 2, 1840 to December 11, ,962 February 25, 1841 to December, ,000

1840 Issue One Penny Black Postal Usages Plate 1a. May 6, Used on wrapper from London to Dublin. Dublin circular date stamp (May 7, 1840) on verso.

1840 Issue Two Pence Blue Plates Registered in 1840 – Plates 1-2 Plate 2 July 18, 1840 to February, , Issue Two Pence Blue (White Lines Added) Plate Registered in 1841 – Plate 3 Plate Registered in 1840 – Plate 4 November 29, 1849 to ,000 Plate 1 May 2, 1840 to December 11, ,962 Steel Blue February 25, 1841 to December, , in Maltese Cross 12 in Maltese Cross Plate 1