Brass worksplate, Manning Wardle & Co
1920
1920
1924
1925
1923
1924
circa 1920
1925
1922
1920-1925
1922-1923
1922-1923
1922-1923
1922-1923
1921
2000-100 BCE
1925
1924
1934
1923
circa 1920
1920
1955; 1830
1921
1920-1925
1923
1919
circa 1920
1920
1920
1925
1990-96
1920
1924
1920
1930 (replica); 1834 (original)
1801-1892 (prepared); 1946 (element replaced)
1922-1923
1922-1923
1922-1923
1922-1923
1922-1923
1922-1923
1919
1924
circa 1919
1922-1925
1924
1934
1922-1924
1920-1922