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Ashton Valve Company
Pressure Gauge Serial Numbers and Production Figures
| Year |
Serial No. |
Mfg'd per Year |
|
Year |
Serial No. |
Mfg'd per Year |
| 1895 |
15254 to 17636 |
2382 |
|
1909 |
144018 to 163700 |
19682 |
| 1896 |
17637 to 18995 |
1358 |
|
1910 |
163706 to 183400 |
19694 |
| 1897 |
19000 to 20580 |
1580 |
|
1911 |
183418 to 196443 |
13025 |
| 1898 |
20581 to 24153 |
3572 |
|
1912 |
196494 to 213395 |
16901 |
| 1899 |
24157 to 30819 |
6662 |
|
1913 |
213777 to 235262 |
21485 |
| 1900 |
30820 to 36211 |
5391 |
|
1914 |
235265 to 253136 |
17871 |
| 1901 |
36212 to 43614 |
7402 |
|
1915 |
253173 to 276752 |
23579 |
| 1902 |
43658 to 51834 |
8176 |
|
1916 |
276785 to 301897 |
25112 |
| 1903 |
51968 to 64764 |
12764 |
|
1917 |
301898 to 330213 |
28315 |
| 1904 |
64734 to 76451 |
11717 |
|
1918 |
330217 to 356574 |
26357 |
| 1905 |
76636 to 89767 |
13131 |
|
1919 |
356953 to 389812 |
32859 |
| 1906 |
89931 to 110304 |
20373 |
|
1920 |
389818 to 422555 |
32737 |
| 1907 |
110556 to 133000 |
22444 |
|
1921 |
422560 to 442010 |
19450 |
| 1908 |
133001 to 144000 |
11000 |
|
1922 |
442032 to 457841 |
15809 |
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