This piece was signed so it wasn’t difficult to identify the maker, and I knew the cutting of course.  But I have had no luck identifying the line number for the shape.

I have two Corn Flower/Cornflower references and neither show this shape.  No one at the Elegant and Everyday Glass Forum responded to my query either.  Must not be a common line.

I guess it doesn’t really matter, but inquiring minds like to know these things!