Can you tell me how much my glass is worth, or how rare it is?




As a non-profit, cultural institution, The Museum cannot offer appraisal services. The Museum will neither provide a monetary value for any object, nor comment on rarity.

If you wish to determine the value of your glass piece, you may want to consult a reliable local antique dealer, or send a photograph of the object to a reputable auction house. For a list of auction houses worldwide, see ArtNet’s

You can also find appraisers through several professional organizations:

The American Society of Appraisers (phone) 800-ASA-VALU (online)

The Appraisers Association of America (phone) 212-889-5404 (online)

The International Society of Appraisers (phone) (312) 981-6778 (online)

Maloney’s Antiques and Collectibles Resource Directory, which provides listings of appraisers by type of collectible. Your local library may have a copy.

  • Last Updated Jul 18, 2023
  • Views 1340
  • Answered By Katherine Larson

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Comments (2)

  1. I have a set of 12 glasses that I found at my parent's home with a note attached to them stating they are attributed to Louis Iorio. From my understanding, Mr. Iorio was a prominent glass maker and etched in the beginning of the 20th century. I would like to send some pictures to you so you could evaluate them. I understand there are some Iorio pieces at the museum.
    by Albert P. Klipfel on Jul 20, 2021
  2. Hello! You can submit images of your glasses to our Curatorial Department using the Ask a Glass Object Question form at It looks like there are a few articles on the Iorio family and glassworks that you could request through your local public library through Interlibrary Loan. Search our library catalog at to find them.
    by Reference Librarian on Jul 21, 2021

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