| Manufacturer | Keuffel & Esser |
| Model | KE 830004 |
10 oz. brass plumb bob.
The Southeast Seattle Tool Library
http://setools.org/
4425 MLK Jr. Way S #100http://setools.org/
In a garage behind the building at the SW corner of MLK and Genesee
Seattle, WA, 98108
USA
202 780 7296