Porcelain Threaded Pintype

Insulators from the United States

Insulator Pictures continued (Page-2):

A series of Helmet styles as follows: U-392, 393, 387, 388, 380, 379 & 390

No tie styles and two piece transpositions: U-183, 184, 184, 186, 223A/223B, 225A/225B & 220A/220B

Additional styles: U-399A, 280, 782, 498, 552, 785, 180A & 171

A series of U-447C and U-448 styles showing great colors

More variation: U-537, 818, 440, 81, 526, 797 & 401