Irradiated Purple/lavender

 Irradiated Blues/Ambers Thermally Induced Colors Before/After Comparisons
National Insulator Association (NIA) logo Insulator Colors Altered by Radiation Exposure

Note:  Click on each insulator for larger pictures and more information!

Shades of radiation induced Blue

H.G.Co.

 

Lynchburg

 

Dec. 19 Pat.

 

Pennycuick

 

Star

 

NN

 

Pennycuick

 

M & E Co.

 

Dec. 19 pat.

 

  

N.E.G.M.Co.

 

R. Good Jr.

 

H.G.Co.

 

A.T.& T. Co.

 

Hawley

 

NN Canadian

 

Postal

 

Brookfield

N.E.T.&T.Co.

Brookfield

1899 Patent

LRI

Shades of radiation induced Green

H.G.Co.

Brookfield

LRI

Shades of radiation induced Amber

Hemingray

Lynchburg

Pyrex

Hemingray

H.G.Co.

Maydwell

Hemingray

Hemingray

Brookfield

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Irradiated Purple/lavender

 Irradiated Blues/Ambers Thermally Induced Colors Before/After Comparisons

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