The attribution will not change in that forum, regardless of any information published anywhere...... The current yellow spatter trophy in the post is one that replaced the image copied and cropped from Truitt and not identified as to source.
While I agree and think it is a valid point that pieces do not have labels, I would also be remiss if I did not point to the huge mountain of work in Bohemian attributions which have been produced and accepted as a result of serious research, and without any labels or pattern books.
Pallme Koenig would be an excellent example of such work. While I have seen, and my website shows an example of a marked PK piece, it is actually not art glass as such, but more along the lines of a cut glass vase. I have no knowledge at all of a PK, early Kralik, or early Rindskopf example with a label, yet the body of their work is relatively recognizable as the result of serious research. The vast majority of glass from Kralik, Rindskopf, and other companies has been researched and attributed without either pattern books or labels. Labels are a bonus which can help to confirm other research leading to the same information.
My position has always been that the foundation and premise of the work must be solid, or the results are not worth the "paper it takes to print them".
The re-write of the particular article makes a reference to an auction shape with a Ruckl label, and an image on another site in yellow variegated. The following statement is now made in that article:
"The yellow and white vase shape shown in the 20thcenturyglass link above matches the vase shape in the following link which is marked Antonin Ruckl & Sons, Vcelnicka. Although the decor is different, the vase shape is exactly the same. " I have added underline and italics to emphasize the statement being made.
Using even the sloppiest tolerances, the two shapes referenced are anything but "identical". Similar.... Yes.... Identical.... very far from it.
So while this research is quite difficult, and can be time consuming, I think there is a level of responsibility pertaining to accuracy that has to be recognized as critical when "publishing" information in public forums.