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Porcelain Insulators from Poland

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 Poland
U-1228 U-1241 U-1254 U-1261 U-1288 U-1402 U-1426 U-1429 U-1404A U-1628 U-1646 U-1654 U-1690 U-1710 U-1735
U-1792A U-1792B U-1795 U-1824 U-1825A U-1897 U-1937A U-1942D U-1956 U-1958 U-1958
U-2062C U-2072A U-2077A U-2077B U-2077C U-2087C U-2088 U-2094D
U-2109 U-2110 U-2112B U-2129 U-2130
U-2131 U-2136 U-2137 U-2137A U-2139 U-2274A U-2259 U-2279 U-2290 U-3107
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