Porcelain Insulators from Switzerland
The main maker of porcelain insulators in Switzerland is the Swisse Langenthal Company, but a few other unattributed pieces have been found. These insulators are identified by U-numbers, but in the range of 1000-3999. The link below is for the reference book that covers these insulators.
Worldwide Porcelain Insulators (Unipart Pin Types)
|Insulators from Switzerland|
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