Hemingray 42 Insulator Value Guide

INSULATOR cobalt blue Glass Hemingray -42 Vintage power pole ...
Hemingray 42 Insulator
Estimated Value
$10 – $15
Period
1921-1950
Origin
United States
Materials
Glass

The Hemingray 42 is a quintessential piece of American communication history, manufactured by the world's largest insulator producer in Muncie, Indiana. Known for its distinctive double-petticoat design and 'drip points,' this model was essential for maintaining clear telegraph and telephone signals during inclement weather.

What Is Hemingray 42 Insulator Worth?

The typical price range for Hemingray 42 Insulator is $10 - $15 based on recent sales. However, values can vary depending on the item's condition, rarity, and other factors such as:

  • Condition is paramount, as chips or cracks in the glass skirts or drip points significantly reduce the $10-$15 average value.
  • The clarity and vibrancy of the aqua glass can influence collector interest compared to duller or heavily stained examples.
  • Manufacturing date codes or specific mold numbers embossed on the glass can occasionally attract niche interest.
  • The presence of all original drip points intact is a major factor in reaching the higher end of the valuation range.

How to Identify Hemingray 42 Insulator?

  • Look for the embossed 'HEMINGRAY-42' branding on the front skirt of the aqua-colored glass.
  • Verify the presence of 'drip points' along the bottom edge, designed to shed water and prevent electrical leakage.
  • Confirm the double-petticoat construction, which features an inner glass layer nested within the outer skirt.
  • Check for a smooth or textured base consistent with production methods used between 1921 and 1950.

History of Hemingray 42 Insulator

The Hemingray Glass Company, based in Muncie, Indiana, became the world's largest manufacturer of glass insulators. The No. 42 model was a communication circuit staple, designed with 'drip points' to shed water and prevent electrical leakage during rain.

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