DATING WEED
Admitting but not granted that the company start the manufacture of sewing machine from 1863, the following is an approximate figure of the annual production:
000........................................
approx. + 500 1863
500........................................
approx. + 1.000 1864
1.500........................................
approx. + 1.500 1865
3.000........................................
approx. + 2.500 1866
5.500........................................
+ 3.638 1867
9.138........................................
+ 12.000 1868
21.138........................................
+ 19.687 1869
40.825........................................
+ 35.002 1870
75.827........................................
+ 39.655 1871
115.482........................................
+ 42.444 1872 *
157.926........................................
+ 21.769 1873
179.695........................................
+ 20.495 1874
200.190........................................
+ 21.993 1875
222.183........................................
+ 14.425 1876
236.608........................................
1872 *