I have champagnes and cordials in this art decoish etch. They are early 20th century pieces. Although I don`t have any reference material about the Monongah lines, online sources cite the end of production at 1927. That`s over 80 years ago! How many fragile things do we handle that are 80 years old…..and just as beautiful. I don`t understand the pricing for old glasses. These items are available online for very reasonable prices. Looking at this post, with the large photo, I realize that I have to dust my stems BEFORE photographing them.