Instructions
Identify your piece based on color and pattern. Observe the color of the glassware. Most Depression glassware was produced in shades of green, pink, amber, cobalt, red and yellow. Distinctive patterns were used on Depression glass. Hobnail, which consists of raised bumps, embossed swirls and flowers, are examples of common patterns.
Refer to a guide that provides pictures and detail descriptions of specific patterns of glassware. The website First Glass Class recommends the books "The Collector's Encyclopedia of Depression Glass" and "Elegant Glassware of the Depression Era," both by Gene Florence. With hundreds of types and styles, a picture reference is your best resource.
Consult with an antique dealer specializing in depression glass. The dealer can help you to identify the pattern name, manufacturer and approximate age of your piece.