![](https://coimages.sciencemuseumgroup.org.uk/10/80/large_thumbnail_pic_1997_7769.jpg)
Brass worksplate, Manning Wardle & Co
1920
1920
1924
1925
1925
1921-1926
1924
1922-1923
1922-1923
1922-1923
1922-1923
circa 1920
1921
2000-100 BCE
1925
1922
1923
1926
1926
1921
1926
1924
1923
1934
1923
circa 1920
1920
1955; 1830
1920-1925
1920-1925
1920
1920
1990-96
1920
1920
1930 (replica); 1834 (original)
1926
1923
1922-1923
circa 1920
1922-1923
1922-1923
1922-1923
1922-1923
1922-1923
1839 (original); circa 1988 (replica)
1923
1924
1925
4000-2001 BCE
1925