In the late 1920’s Bundy purchased the American business from the Selmer brothers, while maintaining the exclusive distributorship of Henri Selmer Paris products in the US. In 1948, Selmer produced the first successfully molded plastic clarinet called the Bundy Resonite 1400. How much is a Bundy Resonite Selmer clarinet serial 806511 worth? 
In the case of a Bundy clarinet serial numbers do not really matter. How much is a Bundy Resonite Selmer clarinet serial.
Buescher / Bundy Serial Number Year Manufactured 5,000 1905 5,020 1906 * 6,610 1907 * 7,808 1908 * 8,580 1909 * 11,250 1910 13,685 1911 * 15,870 1912 * 18,178 1913 * 22,860 1914 * 25,103 1915 (Union Label) 28,875 1916 * 32,350 1917 * 37,540 1918 * 46,975 1919 * 61,255 1920 78,525 1921 * 99,275 1922 * 125,750 1923 * 150,250 1924 * 175,275 1925 202,350 1926 * 222,175 1927 * 235,250 1928 * 275,275 1929 * 255,250 1930 260,125 1931 * 264,025 1932 * 265,523 1933 * 267,356 1934 * 269,000 1935 272,896 1936 * 279,300 1937 * 2?4,418 1938 * 288,024 1939 * 291,000 1940 294,12? 1941 * 297,527 1942 * 303,000 1945 312,000 1948 * 316,000 1949 * 332,000 1950 337,000 1951 * 347,000 1952 * 350,000 1955 360,000 1960 381,000 1963 (Purchased by Selmer USA) 408,818 1965 520,000 1970 630,000 1975 785,000 1980 875,000 1983.