Registered Designs

Home Site  Map Marks List Introduction Birmingham Brass Metal Working and Finishing Special Topics Registered Designs Copper Glossary Copper References Contacts Broseley Archives About us

(C) Vin Callcut 2002-2014.  Small extracts can be used with acknowledgements to 'Oldcopper.org' website. 

Helpful comments are very welcome.

 

'Dating English Registry Marks'

Diamond Registration Marks.

Design Registration Numbers

Country of Origin.

Islamic Calendar

References.

Dating of American Patent Numbers

 
     
  Diamond Registration Marks (Lozenge Marks)  
   

The Copyright of Design Act 1842 initiated the use of the diamond registration mark used to confirm that a design has been registered in Britain .  This confirmed that a design had been registered and gave three year’s copyright protection.  The diamond contained enough information to allow identification from the official records held by the Patent Office.  There was a letter to represent the year so the first series ran from 1842 to 1867.   Other letters identified the day and month of registration, the material and bundle number.  By shifting the positions of the identifiers, a second series was started and lasted until 1883.  The 'Patents, Designs and Trade Marks Act' of 1883 rationalised the system and thereafter only a number series was used.

 
     
 

National Archive Link

 

     
   Diamond Marks dating details ri2208.gif (28164 bytes)  
     
 

Key to Diamond Registration Marks

 
     
 

Letter

First Series

Second Series

Months for both Series

A

1845

1871

December

B

1858

 

October

C

1844

1870

January

D

1852

1878

September

E

1855

1881

May

F

1847

1873

 

G

1863

 

February

H

1843

1869

April

I

1846

1872

July

J

1854

1880

 

K

1857

1883

November

L

1856

1882

 

M

1859

 

June

N

1864

 

 

O

1862

 

January

P

1851

1877

 

Q

1866

 

 

R

1861

 

August

S

1849

1875

 

T

1867

 

 

U

1848

1874

 

V

1850

1876

 

W

1865

 

March

X

1842

1868

 

Y

1853

1879

 

Z

1860

 

 

 
     
 

Design Registration Numbers

The system of registering designs with a specific number was introduced at the end of 1883.  It superseded the previous 'Diamond' registrations.  Where used, such Registered numbers (Rd No.........) give an accurate date for when a design was first produced.  Such designs could then be produced in quantity for as long as needed or fashionable and numbers therefore only give the earliest date in which an object could have been produced.  Since improvements in design have always been a driving force in the industrial societies, many of the numbers would only have been used for a few years and therefore do give a helpful guide.   

However, once a number was included in a mould or pattern, there may have been no reason to remove it.  Some reproductions are being made now that include the original design registration number from many years ago.

The numbers can be used to assess the first year of manufacture from these approximate figures showing the first numbers issued each year :-

 
     
 

Year

From

 

Year

From

 

Year

From

 

Year

From

 

 

 

1901

367,628

 

1921

676,491

 

1941

837,000

 

 

 

1902

380,979

 

1922

685,412

 

1942

838,000

 

 

 

1903

401,944

 

1923

691,571

 

1943

839,000

1884

1

 

1904

422,489

 

1924

695,944

 

1944

841,000

1885

18,993

 

1905

422,489

 

1925

705,943

 

1945

843,000

1886

39,547

 

1906

428,004

 

1926

716,386

 

1946

846,000

1887

61,207

 

1907

469,160

 

1927

723,430

 

1947

848,000

1888

87,266

 

1908

486,464

 

1928

725,899

 

1948

853,000

1889

111,664

 

1909

516,375

 

1929

740,459

 

1949

857,000

1890

140,481

 

1910

533,561

 

1930

741,336

 

1950

860,000

1891

160,613

 

1911

546,084

 

1931

757,945

 

 

 

1892

183,259

 

1912

561,570

 

1932

767,110

 

 

 

1893

203,348

 

1913

585,707

 

1933

777,000

 

 

 

1894

223,861

 

1914

608,541

 

1934

788,000

 

 

 

1895

244,726

 

1915

627,887

 

1935

793,000

 

 

 

1896

266,237

 

1916

642,613

 

1936

808,000

 

 

 

1897

288,848

 

1917

651,079

 

1937

817,000

 

 

 

1898

309,956

 

1918

662,576

 

1938

825,000

 

 

 

1899

328,527

 

1919

665,728

 

1939

833,000

 

 

 

1900

349,120

 

1920

664,869

 

1940

836,000

 

 

 

 
     
 

(Dating of numbers derived from lists of files held by the British Library (Designs collection) and The Public Record Office. 

Numbers after 1933 are taken from the graph below, plotted from PRO files.  Other sources may vary.)

 

 
   
     
 

Country of Origin

From the passing of the 1891 McKinley Tariff Act, any products imported into the USA were required to show the country of origin.  The word ‘England’ was used from 1891 to c1909.  Thereafter ‘Made in England’ was used and this was gradually succeeded by ‘Made in Britain’.  Manufacturers frequently applied these marks to all products rather than just those destined for export. 

 
     
  The 1860 Companies Act established 'Limited' companies.  The use of 'Ltd' after a company name gained favour after 1880.  The use of 'Trade Mark' dates any time from the Trade Marks Act of 1862 until the present.  
   

Purchase Tax.  This was a sales tax levied first on the 19th October 1940 on all goods sold in Britain with a few exceptions such as food, 'Utility' CC41 furniture and trade tools. It followed from the budget of the 23rd July.  Price lists produced thereafter frequently mentioned that purchase tax was, or was not, included. The government's idea was to discourage luxury goods during wartime and later post-war shortages.  The tax rates were a fixed percentage of the wholesale price.  Catalogues that do not mention purchase tax may well be pre- 1939.

Islamic Calendar

 Islamic metalwork may be dated and if so it is likely to use the Moslem calendar.  This starts in the year of Mohammed’s flight from Mecca to Medina in the Western year AD 622 and the years are based on the lunar calendar of 354 days.  To convert and adjust for the number of days in the year, the Islamic script can be read for the year using the following number conversions:

 

Arabic

ر

٢

٣

ع

٥

٦

٧

٨

٩

ر٠

٠

Western

1

2

3

4

5

6

7

8

9

10

0

 The conversion formula to use is: 

 YAD  =   622  +  YM  -    YM /33

where    YAD is the Western year

and       YM  is the Moslem year

 

 

 
 

References

The data used has been abstracted from:

 Jones, Ian, ‘Design Registration Marks’  Ironbridge Gorge Museum Information Sheet No 7, 1981, and

 http://www.patent.gov.uk/design/index.htm  (Page now not available)

 The National Archives, Kew, Richmond, Surrey, TW9 4DU, United Kingdom
tel: +44 (0)20 8876 3444; fax: +44 (0)20 8392 5286.

Dating of American Patent Numbers

1859          22,477

1860          26,642

1861          31,005

1862          34,045

1863          37,266

1864          41,047

1865          45,685

1866          51,764

1867          60,685

1868          72,958

1869          85,503

1870          98,460

1871        110,617

1872        122,304

1873        134,504

1874        146,120

1875        158,350

1876        171,541

1877        185,813

1878        198,733

1879        211,078

1880        223,210

1881        240,373

1882        254,836

1883        269,820

1884        291,016

1885        310,168

1886        353,494

1887        355,291

1888        375,720

1889        395,306

1890        418,665

1891        443,987

1892        466,315

1893        488,976

1894        511,744

1895        531,619

1696        552,502

1897        574,369

1898        596,467

1899        618,871

1900        640,187

1901        664,827

1902        690,385

1903        717,521

1904        748,567

1905        778,834

1906        808,618

1907        839,799

1908        875,679

1909        908,436

1910        945,010

1911        980,178

1912        1,013,095

1913        1,049,326

1914        1,083,287

1915        1,123,212

1916        1,166,419

1917        1,210,389

1918        1,251,458

1919        1,290,027

1920        1,329,352

1921        1,364,063

1922        1,401,948

1923        1440,362

1924        1,478,996

1925        1,521,590

1926        1,568,040

1927        1,612,790

1928        1,854,521

1929        1,696,897

1930        1,742,181

1931        1,787424

1932        1,839,190

1933        1,892,663

1934        1,941,449

1935        1,985,878

1936        2,026,516

1937        2,066,309

1938        2,104,004

1939        2,142,080

1940        2,185,170

1941        2,227,418

1942        2,268,540

1943        2,307,007

1944        2,338,081

1945        2,366,154

1946        2,391,856

1947        2,413,675

1948        2,433,824

1949        2,457,797

1950        2,492,944

1951        2,536,016

1952        2,580,379

1953        2,624,046

1954        2,654,562

1955        2,698,434

1956        2,728,913

1957        2,775,762

1958        2,818,567

1959        2,866,973

1960        2,919,443