Some tips for identifying Depression-era glass are looking for raised patterns on the glassware and ripple marks at its base, identifying scratch marks on the glass, and ensuring that the color and raised seam patterns of the piece match perfectly with those given in a depression-era glass reference book. In addition, search for detailed descriptions and buyer feedback when checking listings online.
To identify a Depression-era piece of glassware, examine the piece for raised patterns, particularly at the seams present along its edges. Seams that are distinctly raised indicate an authentic Depression-era object. Normally, imitations of the glassware of this era do not have the raised patterns, or they are subtle.
The glassware should also have rippled straw marks at its base that reflect aging of the glass molds. Reproduction pieces do not have these marks. Authentic glassware of this era also feature scratches on the smooth surfaces that indicate its extent of use.
The glassware description given in the listings online should contain detailed information regarding the piece's maker, color, condition and pattern. If the piece is not authentic, the descriptions tend to be vague. Before buying the glassware online, ask the seller to send further details about the piece. Also, go through the feedback of the previous purchasers to know how reliable the seller is.