| Pocket Positive | |
| Year | Serial Number |
| 1905 | 30000 |
| 1906 | 30200 |
| 1907 | 34700 |
| 1908 | 40800 |
| 1909 | 44500 |
| 1910 | 48200 |
| 1911 | 51500 |
| 1912 | 55000 |
| 1913 | 61000 |
| 1914 | 67000 |
| 1915 | 72500 |
| 1916 | 74500 |
| 1917 | 79000 |
| 1918 | 84000 |
| 1919 | 85000 |
| 1920 | 88000 |
| 1921 | 100000 |
| 1922 | 105000 |
| 1923 | 110500 |
| 1924 | 115000 |
| 1925 | 116000 |
| 1926 | 122500 |
| 1927 | 127000 |
| 1928 | 130000 |
| 1929 | 138000 |
| 1930 | 149000 |
| 1931 | 150000 |
| 1932 | 150500 |
| 1933 | 151000 |
| 1934 | 152000 |
| 1935 | 154000 |
| 1936 | 154700 |
| 1937 | 155000 |
| 1938 | 157000 |
| 1939 | 157800 |
| 1940 | 159000 |