Porcelain
- Category: Porcelain
Diamond-shaped English registry marks
These marks were used by the English patent office from 1842 to 1883.
In case of ceramic (porcelain, pottery) at the top of the mark is the Roman numerals "IV".
| Types of material | |||
| Type of material | Roman numeral | Type of material | Roman numeral |
| metal | I | other shawls | VIII |
| wood | II | yarn | IX |
| glass | III | printed fabrics | X |
| ceramics | IV | furnitures (printed fabric with repeat greater than 12 x 8) | XI |
| paper hangings | V | other fabrics | XII (i) |
| carpets | VI | other fabrics (damasks) | XII (ii) |
| printed shawls | VII | lace | XIII |
1842 to 1867 period marks have a letter at the top of the diamond. Whereas marks registered in the period 1868 to 1883 have a number instead of a letter at the top of the diamond.
1842 - 1867 marks
In the period 1842 - 1867, a year is marked at the top of the diamond.
| 1842 - 1867 YEAR CODES | |||
| YEAR | LETTER | YEAR | LETTER |
| 1845 | A | 1864 | N |
| 1858 | B | 1862 | O |
| 1844 | C | 1851 | P |
| 1852 | D | 1866 | Q |
| 1855 | E | 1861 | R |
| 1847 | F | 1849 | S |
| 1863 | G | 1867 | T |
| 1843 | H | 1848 | U |
| 1846 | I | 1850 | V |
| 1854 | J | 1865 | W |
| 1857 | K | 1842 | X |
| 1856 | L | 1853 | Y |
| 1859 | M | 1860 | Z |
In the period 1842 - 1867, a month is marked at the left side of the diamond.
| 1842 - 1867 MONTH CODES | |
| MONTH | LETTER |
| December | A |
| October | B |
| January | C |
| September | D |
| May | E |
| February | G |
| April | H |
| July | I |
| November | K |
| June | M |
| August | R |
| March | W |
In the period 1842 - 1867, a day of month is marked on the right side of the diamond.
In the period 1842 - 1867, a parcel / bundle number is marked at the lower corner of the diamond. The parcel number, which is a code indicating the person or company that registered the piece.
1868 -1883 marks
In the period 1868 - 1883, a year is marked on the right side of the diamond.
| 1868 -1883 YEAR CODES | |||
| YEAR | LETTER | YEAR | LETTER |
| 1871 | A | 1883 | K |
| 1870 | C | 1882 | L |
| 1878 | D | 1877 | P |
| 1881 | E | 1875 | S |
| 1873 | F | 1874 | U |
| 1869 | H | 1876 | V |
| 1872 | I | 1868 | X |
| 1880 | J | 1879 | Y |
In the period 1868 - 1883, a month is marked at the lower part of the diamond.
| 1868 -1883 MONTH CODES | |
| MONTH | LETTER |
| December | A |
| October | B |
| January | C |
| September | D |
| May | E |
| February | G |
| April | H |
| July | I |
| November | K |
| June | M |
| August | R |
| March | W |
In the period 1868 - 1883, a day of the month is marked at the upper part of the diamond.
In the period 1868 - 1883, a parcel / bundle is marked on the right side of the diamond.
