Hi - I have zoomed in and get a magnified blurr...the mark isn't even in focus. Have you tested the metal? Why are presuming gold filled? Because it says double? It is very difficult to research a maker without any idea of the metal content or even details of the style or an approximate age so that we have some idea in which area to research, and then a mark that we can't even see.
You should be able to get an idea of the age by the style of the clasp.
regards Yvonne
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gold Filled, I presume. by: Anonymous
I will try to get better pics.
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SUPERMAN LOGO by: Anonymous
Gold filled? Don't know the age. The photo should be able to magnify.
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Close-up Photo Required by: Yvonne
Hi Jackie - just wish I had superman's eyes. Please could you submit in a follow-up submission a close up photo of the mark. Also what is the metal?