By Guido Boreani; posted October 29, 2001 View Original: Click to zoom, then click to magnify (309 x 400) 22KB
This insulator has been rescued from the first 50 kV line in Europe, Gromo - Nembro, in northern Italy, built 1904.
The insulator was made in Germany by Hermsdorf, in two parts. It is one of the largest Deltas known.