'Pyramid' food warmer invented by Samuel Clarke, England, 1888-1920
1888-1920
1888-1920
1888-1900
1924
1938-1948
1948
1930-1939
1945
1938-1948
1960-1965
1924
1888-1900
circa 1942
1945
1945
circa 1952
1888-1900
1888-1900
1888-1900
circa 1952
1945
circa 1952
1907-1917
1938-1948
1948-1958
1960-1965
1932
1961