Glass Bottle Marks is a comprehensive online resource dedicated to the history and identification of antique and vintage glassware, particularly focused on the glass manufacturing industry in the United States. The website offers an extensive collection of articles detailing manufacturers' marks, logos, and emblems found on a variety of glass items, including bottles, fruit jars, tableware, and electrical insulators. Visitors can explore detailed histories of prominent glass factories such as Hemingray Glass Company and Owens-Illinois Glass Company, as well as learn about collectible types of glass, including Depression Glass, EAPG (Early American Pattern Glass), and milk glass.

With a user-friendly navigation system, the site serves as a valuable resource for collectors, historians, and enthusiasts looking to uncover the stories behind their glass finds. Glass Bottle Marks not only provides essential dating information but also promotes a deeper understanding of the artistry and craftsmanship inherent in the glassmaking tradition