Typical embossed marks include a makers mark or letters on the bottles side or base. You may also see mold lines or machine marks. Missing letters, uneven spacing, or other embossing errors provide clues to a bottles age.

How do you know if glassware is valuable?

1:142:00How To Identify Valuable Glass by Dr. Lori - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd basically go and put your thumb into the decoration of that particular piece of glass. If itsMoreAnd basically go and put your thumb into the decoration of that particular piece of glass. If its pressed glass or molded glass youre not going to feel much of anything its going to be smooth.

What glassware is valuable?

Look for pink, blue and green glassware Pink, green and blue are the most valuable colors of depression glass. Pink tends to be the most valuable because it is more rare. Yellow and amber colored depression glass is more common and therefore less valuable.