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Porcelain Insulators from Portugal

The porcelain 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 Portugal

U-1175

U-1187

U-1456

U-1546A

U-1565

U-1633

U-1660

U-1692

U-1833

U-1927

U-2068

U-2081A

U-2272

U2272A

U2279B

U-3065

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