Antique Hemingray No 16 Aqua Glass Insulator Patented May 2 1893 H.G.Co CD 162
This antique Hemingray No. 16 aqua glass insulator featuring the embossed “PATENTED MAY 2 1893” marking is a highly desirable early utility piece from the golden era of American telegraph expansion. Produced by Hemingray Glass Company, this insulator was engineered to support and electrically isolate wires on wooden poles, and today stands as a sought-after collectible with strong historical appeal.
This example is pre-owned and shows authentic age and field-use wear including surface scratches, internal bubbles, light cloudiness, and manufacturing imperfections typical of late 19th to early 20th century glass. The embossing is legible and well-defined, and the structure remains solid with no major cracks affecting display integrity. Minor edge wear and base roughness are consistent with long-term outdoor exposure.
Crafted from thick molded glass in a rich aqua-blue tone, this insulator displays beautiful light refraction and classic CD 162 profile styling. The embossing includes Hemingray identifiers and the patent date May 2, 1893, marking it as an early production design. The threaded interior and skirt design are intact, making it both a functional relic and a decorative display piece.
Hemingray Glass Company was the leading manufacturer of glass insulators in the United States, producing millions of units that helped build the nation’s communication network during the late 1800s and early 1900s.
This piece is ideal for collectors of antique insulators, railroad or telecommunication memorabilia, and those who appreciate industrial history or vintage glass decor. Its age, embossing, and color make it a standout addition to any serious collection or display.
All visible details have been carefully reviewed to ensure accuracy.
Did you know? The May 2, 1893 patent date found on many Hemingray insulators refers to improvements in glass insulator design that enhanced durability and performance.
This is an authentic Hemingray item. Hemingray is a trademark of its owner. California Auction Company is not affiliated with or endorsed by Hemingray.