Insulator, Telephone
Mediumglass
Dimensions4 1/2" high x 3 1/4" bottom diameter
ClassificationsElectrical and Magnetic Tools and Equipment
Catalog number75.48
DescriptionBlue glass insulator for telephone. "Hemmingray made in USA No 21 " Side seams. Pointed ridged bottom.Status
Not on view
1977
1977
Armstrong DPI
circa 1930
Armstrong DPI