Hemingray 42 Clear Glass Insulator Value Guide

The Hemingray 42 is a cornerstone of American telecommunications history, produced by the prolific Hemingray Glass Company for telegraph and telephone lines. These clear glass units are highly collectible due to their iconic 'CD 154' shape and their role in the expansion of the United States electrical infrastructure.

What Is Hemingray 42 Clear Glass Insulator Worth?

The typical price range for Hemingray 42 Clear Glass Insulator is $10 - $20 based on recent sales. However, values can vary depending on the item's condition, rarity, and other factors such as:

• Physical condition is paramount; chips on the inner or outer skirts significantly reduce the $10-$20 market value.
• The clarity of the glass, including the presence of bubbles or 'seeds' from the manufacturing process, can influence collector interest.
• Specific mold numbers or date codes embossed on the glass can make certain Hemingray 42 units more desirable than others.
• The sharpness and legibility of the embossed lettering affect the overall display quality and secondary market price.

How to Identify Hemingray 42 Clear Glass Insulator?

• Look for the embossed 'Hemingray 42' text clearly visible on the front skirt of the glass.
• Verify the presence of 'Made in U.S.A.' markings which were standard for this era of production.
• Check for the characteristic 'drip points' on the bottom rim, designed to shed moisture away from the wire.
• Confirm the clear glass composition, which distinguishes it from the more common aqua or rare colored variants.

History of Hemingray 42 Clear Glass Insulator

Hemingray Glass Company, established in 1848, became one of the most prolific manufacturers of glass insulators in the United States. The 'Hemingray 42' model was widely produced for telegraph and telephone lines, particularly during the late 19th and early 20th centuries. These insulators are now sought after by collectors for their historical significance and variety of colors and markings.