Antique Hemingray No. 40 Aqua Insulator CD 152 1893 Patent Natural Bubbles Clean Embossing Telegraph

The details

An authentic antique Hemingray No. 40 glass insulator — CD 152 form, aqua glass, with the original May 2, 1893 patent date embossed and natural glass bubbles throughout. Produced by the Hemingray Glass Company, the No. 40 is a well-respected form in American glass insulator collecting. The CD 152 designation is the collector-recognized shape classification for this style. This example was part of the telephone and telegraph infrastructure that connected cities and towns across 19th and early 20th-century America. The glass carries the PATENTED MAY 2 1893 embossing and displays natural seed bubbles throughout the glass wall — bubbles that form during manufacture and serve as authentication markers for age and original production. Condition is clean for an antique insulator. No cracks. Embossing is sharp and well-defined. Glass is clean with no major damage. Natural bubbles present per listing and title. A strong display piece for any glass insulator collector, telegraph history enthusiast, or Hemingray specialist. Stands on a shelf or windowsill with no additional hardware needed. Maker: Hemingray Glass Company Model: Hemingray No. 40 CD Number: CD 152 Patent date: PATENTED MAY 2 1893 (per embossing) Color: Aqua Dimensions: Approximately 3.5 inches tall x 2.875 inches wide Condition: No cracks; clean embossing; natural glass bubbles consistent with age Packed with care and shipped insured. Every piece leaves our shop protected to arrive safely.