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

U-1189 U-1246 U-1250 U-1690 U-1692 U-1743 U-1775

U-1775B U-1825 U-1897 U-1935 U-2469 U-2470

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