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Mother of Pearl Glass – Who Made It All? - Most certainly, Not Just Kralik....

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welzebub's items10 of 201A Welz Tri-lobed Heart in a New Decor For The Shape - The 36th Décor Found On This Shape!Another Welz Surface Texture – Concentric Diamonds – They’re Not the Only Ones Who Made It
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    Posted 2 months ago

    welzebub
    (201 items)

    When my website was first being worked on around 10+ years ago, I was provided images of a group of production and was told it was all Kralik Mother of Pearl glass. At the time I really had no basis with which to doubt the claim. I also had, at that point in time, a belief that the gentleman who informed me of that knew what he was talking about….. I later came to doubt some of his attributions. Those doubts have been reflected in some of the pages and changes in some attributions on my website.

    After about 1.5 to 2 years of the website being online, I came to seriously doubt the claims about the production, and who made it. Based on that doubt, I removed the page from my website. Of the pieces which were removed, as shown in the three group images above, I would be comfortable calling 2, maybe 3 of them Kralik at this point.

    At the point in time that my site went up and the page was included, almost every piece of this type of glass was being classified as Kralik production by one individual doing Bohemian glass research. In hindsight I find that to be a mistake.

    I do not believe in many cases, that the attributions of MOP glass to Kralik were correct, and now find many of them to be both unsupported, and at least for now, unsupportable. I do find the example as shown in the last image to most likely be Kralik, based on the shape and it’s link to other Kralik decors.

    I also find that based on this, contrary to my earlier post, it is obvious that Welz was not the only company to use the Diamond Quilt surface texture……. But I do believe all of the examples in my post in this forum on that subject are all Welz, and none are Kralik. There are other aspects of the production also pointing that direction.

    --------------------------------------------------------------------------------------------------
    12.15.2019 Edit In
    I have changed out the last image. I retained the Kralik Diamond Quilt Mother of Pearl piece at the top of the image. In another discussion regarding a Diamond Quilt piece in this forum, I was told that some pieces in that type of glass were Kralik for reasons that included the color and finish of the Mother of pearl glass. I have included in the lower portion of the last image, 19 examples of color rods that were sold to the industry by Joseph Riedel. Considering that Riedel was one of the larger color suppliers of the time and region, I think it would be a logical assumption, that at a minimum, many companies likely produced glass in the same color.
    End Edit

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    Comments

    1. Wow22, 2 months ago
      I've often wondered about this seemingly 'blanket' attribution. Have any MOP pieces been observed with the accepted Kralik arched (or straight) provenance marks?
    2. welzebub welzebub, 2 months ago
      Wow22 - It is a "blanket" attribution that has been in place for a very long time, and I find it to be completely unsupportable. As far as the accepted marks go, not that I am aware of. Personally I have not seen one that I recall.

      As far as houses that made this style of glass.... likely almost all of them did. Riedel sold a number of color rods that would produce glass with this type of MOP appearance...... Unless Kralik was the only company that bought them (highly unlikely), the blanket attribution is completely unsupportable.....
    3. sklo42 sklo42, 2 months ago
      I look forward to hearing of any conclusions you may reach. I have no concern about it going one way or the other, or several ways for that matter. I do think though, that it will be interesting to see how you proceed.
    4. sklo42 sklo42, 2 months ago
      Gets more interesting..... I'd just assumed that putting on the iridescent finish caused the slight colour variations.
    5. welzebub welzebub, 2 months ago
      It is certainly possible that iridescence would cause a perceived variation in the color. The iridescence can cause pieces to appear among other things, "cool" or "warm" depending on the process and the production house.

      That being said, the fact that there are 19 variations of the basic glass color from one color supplier, would indicate that extreme caution should be used, and also seemingly indicates that other decors on the same shapes would likely be the key to deciphering the makers of the MOP examples, as shown in your Kralik examples in the Diamond Quilt and other known Kralik decors.

      It is for these reasons, that the MOP page has never been put back up on my website.

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