| Wiley |
from before 1801 and later |
Philadelphia, Pennsylvania |
 |
| G. Piper |
Ca. 1820 |
Boston |
 |
| Thomas Belcher |
1822 until 1824 |
New York, New York |
|
| Thomas & William Belcher & Co. |
1825 |
New York, New York |
|
| Thomas & William Belcher |
Ca. 1826 until 1830 |
New York, New York |
|
| L.C. Stephens & Co. |
1828 until 1901 |
Riverton, Connecticut |
|
| Hedge & Co. |
Ca. 1830 |
New York |
 |
| Belcher Brothers Makers |
Ca. 1831 until 1843 |
New York, New York |
|
| Franklin Bolles |
1833 until 1835 |
Hartford, Connecticut |
|
| Joesph Watts |
from before 1834 until 1849 and later |
Boston & Charlestown, Massachusetts |
|
| S.A. Jones & Co. |
from before 1838 until 1841 and later |
Hartford, Connecticut |
|
| E.A. Stearns |
from before 1838 to 1863 |
Brattleboro, Vermont |
|
| Belcher & Brothers |
1843 until 1852 |
New York, New York & Camptown, New Jersey |
 |
| W.H. Rook |
Ca. 1849 |
Roxbury, Massachusetts |
|
| Stephen Jaggers |
1849 until 1861 and later |
Newark & Irvington, New Jersey |
|
| J. & G.H. Walker |
1849 until 1873 |
New York, New York |
|
| Staniford & Rook |
Ca. 1850 |
E. Cambridge, Massachusetts |
 |
| Belcher Brothers & Co. |
from before 1853 until 1885 |
New York, New York & Newark, New Jersey |
|
| Seth Savage |
Ca. 1854 |
Middletown, Connecticut |
|
| Upson Nut Co. |
1854 until 1911 |
Unionville, Connecticut & Cleveland, Ohio |
|
| Anthony Gifford |
Ca. 1855 |
Westport, Massachusetts |
|
| A. Stanley |
1855 until 1857 |
New Britain, Connecticut |
|
| Stanley Rule & Level |
1857 until 1920 |
New Britain, Connecticut |
|
| Standard Rule Co. |
1872 until 1888 |
Unionville, Connecticut |
 |
| |
|
|
 |
| H. Chapin's & Son Co. |
1897 until 1901 |
Pine Meadow or New Hartford, Connecticut |
 |
| S. Adlam |
|
Boston, Massachusetts |
 |
| Carter & Co. |
|
|
|
| W. Lambert |
|
|
|
| Richardson & Co. |
|
Middletown |
|
| Unmarked |
|
|
|
