Old Insulators on Duty 3
By George Sukhoff; posted August 26, 2013
View Original: Click to zoom, then click to magnify (750 x 1000) 122KB
|
Different insulators (one Kornilov Bros №2 and three TF-1's) on a 1894 telephone line. |
|
|
Different insulators (one Kornilov Bros №2 and three TF-1's) on a 1894 telephone line. |