The initial attribution by Alfredo is based on some Butler Brothers issues. As I said, these pieces appear in varying degrees of execution quality which does not surprise me. What is a little confusing in regards to these being Kralik as Alfredo asserts is that they appear both with and without pontil scars. Applied prunts and rims without a pontil mark is not something I generally associate with Kralik production. I would also say that a couple of the colors I have seen these in, like the lilac color on this example without a pontil mark are not colors I really associate with Kralik. Not to say they did not use iot, but I have a hard time thinking of another piece by them in this color..... I have not directly examined the ad in which the form appears that Alfredo references in his CW posting. Butler brothers ads can provide good leads for attributions, and my experience is that they groupings in each individual offering have generally "appeared" to be from the same company. Alfredo's posting shows line art of a piece with this style rim and what I would refer to as "wings" on the piece which he also shows examples of. For the reasons stated above, I am not completely convinced that these are Kralik, or at least that all of them are...
Hope this makes sense....
Craig