Rounded conical form, wtih a threaded core in aqua glass.
At the sides is a molded 'B' and at the top is a molded 'O.'
- Associated Building
- Original to Cogswell's Grant (Essex, Mass.).
- Object type
- Electrical & Magnetic T&E
- Descriptive terms
- 4.125 (H), 3.125 (diameter) (inches)
- Accession Number
- Credit Line
- Gift of Bertram K. and Nina Fletcher Little