|
| |
Waltham Production Dates (approx.)
| Number |
Date |
| 1000 |
1857 |
| 14000 |
1858 |
| 17000 |
1859 |
| 20000 |
1860 |
| 23000 |
1861 |
| 34000 |
1862 |
| 46000 |
1863 |
| 118000 |
1864 |
| 190000 |
1865 |
| 262000 |
1866 |
| 335000 |
1867 |
| 410000 |
1868 |
| 470000 |
1869 |
| 500000 |
1870 |
| 550000 |
1871 |
| 600000 |
1872 |
| 691000 |
1873 |
| 720000 |
1874 |
| 800000 |
1875 |
| 900000 |
1876 |
| 1000000 |
1877 |
| 1160000 |
1878 |
| 1351000 |
1879 |
| 1499000 |
1880 |
| 1675000 |
1881 |
| 1837000 |
1882 |
| 2000000 |
1883 |
| 2356000 |
1884 |
| 2650000 |
1885 |
| 3000000 |
1886 |
| 3300000 |
1887 |
| 3700000 |
1888 |
| 4000000 |
1889 |
| 4882000 |
1890 |
| 5000000 |
1891 |
| 6000000 |
1892 |
| 6400000 |
1893 |
| 6650000 |
1894 |
| 7000000 |
1895 |
| 7500000 |
1896 |
| 8000000 |
1897 |
| 8500000 |
1898 |
| 9000000 |
1899 |
| 9500000 |
1900 |
| 10000000 |
1901 |
| 11000000 |
1902 |
| 12000000 |
1903 |
| 13000000 |
1904 |
| 14000000 |
1905 |
| 14500000 |
1906 |
| 15000000 |
1907 |
| 17000000 |
1908 |
| 17500000 |
1909 |
| 18000000 |
1910 |
| 18030000 |
1911 |
| 18060000 |
1912 |
| 19000000 |
1913 |
| 20000000 |
1914 |
| 20300000 |
1915 |
| 20700000 |
1916 |
| 21000000 |
1917 |
| 22000000 |
1918 |
| 23000000 |
1919 |
| 23500000 |
1920 |
| 24000000 |
1921 |
| 24200000 |
1922 |
| 24400000 |
1923 |
| 24600000 |
1924 |
| 24800000 |
1925 |
| 25000000 |
1926 |
| 26000000 |
1927 |
| 26500000 |
1928 |
| 27000000 |
1929 |
| 27200000 |
1930 |
| 27400000 |
1931 |
| 27600000 |
1932 |
| 27800000 |
1933 |
| 28000000 |
1934 |
| 28500000 |
1935 |
| 29000000 |
1936 |
| 29300000 |
1937 |
| 29700000 |
1938 |
| 30000000 |
1939 |
| 30300300 |
1940 |
| 30700000 |
1941 |
| 31000000 |
1942 |
| 31370000 |
1943 |
| 31650000 |
1944 |
| 32000000 |
1945 |
| 32300000 |
1946 |
| 32700000 |
1947 |
| 33000000 |
1948 |
| 33449000 |
1949 |
| 33558000 |
1950 |
| 33600000 |
1951 |
| 33700000 |
1952 |
| 33830000 |
1953 |
|
