Readers Respond - Bubble Glass

Note: This was published on FRIDAY - the BLOG Date is Incorrect -

Here is my "bubble" glass piece. The high end collectors don't tend
to like this line. Personally, I like glass with dots on it and would
love to know the process. Did they carve a mold with dots on it? How
were these pieces produced?

West Virginia Janis

I m betting there is at least one 'collector of BLENKO ' who knows the answer to WVa Janis' question. Please help!