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|
LOZENGE MARK
PATENT MARK (BRITISH)
Unlike silver items, there is no date letter on silverplate allowing
to recognize the date of its manufacture.
For silverplate items the patent's date of registered models may be
useful for an approximate dating.
The 'lozenge' mark used between 1842 and 1883 to certify the patent of
the models registered by the UK Patent Office allows the identification
of day, month and year of their registration.
|
|
1842 - 1867
|
1868 - 1883
|
|
|
 |
|
|
|
registry mark used between
1842 - 1867
|
registry mark used between
1868 - 1883
|
| YEAR |
LETTER |
MONTH
|
LETTER |
YEAR |
LETTER |
MONTH
|
LETTER |
| 1842 |
X |
January
|
C
|
1868 |
X |
January
|
C
|
| 1843 |
H |
February
|
G
|
1869 |
H |
February
|
G
|
| 1844 |
C |
March
|
W
|
1870 |
C |
March
|
W
|
| 1845 |
A |
April
|
H
|
1871 |
A |
April
|
H
|
| 1846 |
I |
May
|
E
|
1872 |
I |
May
|
E
|
| 1847 |
F |
June
|
M
|
1873 |
F |
June
|
M
|
| 1848 |
U |
July
|
I
|
1874 |
U |
July
|
I
|
| 1849 |
S |
August
|
R
|
1875 |
S |
August
|
R
|
| 1850 |
V |
September
|
D
|
1876 |
V |
September
|
D
|
| 1851 |
P |
October
|
B
|
1877 |
P |
October
|
B
|
| 1852 |
D |
November
|
K
|
1878 |
D |
November
|
K
|
| 1853 |
Y |
December
|
A
|
1879 |
Y |
December
|
A
|
This patent mark
is dated 23 October 1845:
year 1845 (upper corner "a")
month October (left corner "B")
day 23 (right corner "23") |
This patent mark
is dated 27 June 1872:
day 27 (upper corner)
month June (lower corner M)
year 1872 (right corner I) |
The patent "Rd 47011"
on an item hallmarked London 1887 (maker Atkin Brothers)
belongs to the series of numbers issued in 1886. |
From 1884 a numerical identification was attributed to new patent
models. The table below reports the first serial numer attributed from
1884 to 1899
| YEAR |
FIRST
NUMBER |
YEAR
|
FIRST
NUMBER
|
YEAR |
FIRST
NUMBER |
YEAR
|
FIRST
NUMBER
|
| 1884 |
1 |
1885
|
19754
|
1886 |
40480 |
1887
|
64520
|
| 1888 |
90483 |
1889
|
116480
|
1890 |
141273 |
1891
|
163767
|
| 1892 |
185713 |
1893
|
205240
|
1894 |
224720 |
1895
|
246975
|
| 1896 |
268392 |
1897
|
291241
|
1898 |
311658 |
1899
|
331707
|
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