
Demainbray's speaking trumpet
1700-1752
1700-1752
1735-1752
1720
1802
1821
1930-1980
1807-1820
1752
1939
1907-1917
1955
1955
1939
1950
1955
1939
1950
1939
1950
1955
1955
1955
1950
1955
1910
1910
1947
1955
1905-1915
1950
1955
1939
1950
1950
1950
1950
1950
1939
1950
1955
1960
1950
1915
1955
1955
1955
1950
1955