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Stained Glass/Cleaning and determination of origin/date



Window section
Window section  
I have a window panel that I cannot identify, "found" in an abandoned building in Albuquerque, NM.  Having looked at thousands of images online, I have seen nothing like it to help in dating or evaluating the piece.  Looks like an art nouveau piece, opalescent in appearance, nearly opague green, lighter red and pink, marbled yellow, and a milky outer edge.

First problem is how to remove sticky residue from old tape that was applied around its perimeter in lieu of frame.  (I am afraid of scratching what appears to be a delicate surface.)  I have constructed a temporary protective frame, which is what you see in the photo.

I am not versed in process--seems there are very thin layers of glass

I am including photos here, including a "profile that shows the thickness along an edge.  I am hoping for any info or referral, as local antique dealers have been unable to ascertain its age or value with any degree of certainty.

I have some very clear detailed photos if they would help, as well as backlit photos.  Window measures 31" high x 17" wide.

Thanks in advance for your help!


Dear Steve,

After looking at the photographs, the panel does not appear to be painted. This will be a good thing due to the 'sticky residue'. You can try nail polish remover or mineral spirits to cut through / dissolve the adhesive residue. This may cut some or all of it. Second would be to very carefully run a razor blade along the surface to lift any that is left. Once all is removed wash the window with a mild soap solution and rinse well with water.

As far as dating or value; I don't see any unique characteristics that would help me date it and although it is a nice piece, it's resale value may be lower than you are hoping for.

If it would be helpful to you, you can e-mail me directly at

Best of luck to you,


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Valerie McCartney


Visit our web site at I can answer questions about restoration and repair of stained glass windows and their surrounds. I can, also, answer technical questions regarding matching old glass, glass painting (kiln-fired), waterproofing panels (cementing), re-inforcing, removal, and installation. I can not answer questions on glass casting, Dalle de Verre, or glass blowing.


Past/Present partial client list
Aboite Baptist Church, Ft. Wayne, IN; Immaculate Conception Church, Three Rivers, MI; St. Monica Church, Kalamazoo, MI; St. Charles Catholic Church, Coldwater, MI; St. Clair Catholic Church, Centreville, MI; St. Mary's Church, West Phalia, MI; Pleasant View Church of Christ, Angola, IN; St. Paul United Church of Christ, LaPorte, IN; First Congregational United Church of Christ, Olivet College, Olivet, MI; First Congregational Church United Church of Christ, Kalamazoo, MI; Trinity Lutheran Church, Culver, IN; St. Paul's Lutheran Church, Breman, IN; Grace Lutheran Church, Germfaske, MI; St. Michael's Lutheran Church, Rogers City, MI; United Methodist Church, Bellevue, MI; Augusta Fellowship United Methodist Church, Augusta, MI; United Methodist Church, Galena, IL; Metropolitan United Methodist Church, Detroit, MI; University United Methodist Church, Lansing, MI; Believer's Bible Fellowship Church, Churubusco, IN; St. Elias Eastern Orthodox Church, Battle Creek, MI; First Presbyterian Church, Allegan, MI; First Reformed Church, Grand Haven, MI; Bellmor House, Grosse Pointe, MI; Milwood Middle School, Kalamazoo, MI;

Experience in the area
I have owned and operated Full Spectrum Stained Glass, Inc. since 1988. (

The Stained Glass Association of America, The American Glass Guild, National Trust for Historic Preservation, Better Business Bureau of Western Michigan

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