Windsor pattern mayonnaise bowls, made by Federal/Indiana glass

So two glass bowls. 5 1/2". I assume they are molded glass, though I can't find any seams by looking or by feel. It was the big faceted buttons that appealed to me. A very pretty bright pattern. Pic#1 is from the top down, pic#2 is a side view of the pattern, pic#3 is the reverse, and pic#4 is the two bowls side by side. If any of the glass folk recognize this pattern and what sort of glass, I'd love to hear from them. Thanks for looking.

MYSTERY SOLVED: Our TallCakes says that it "looks like a mayo bowl in the Windsor pattern by Federal Glass and reproduced by Indiana Glass." Thank you very much indeed, Sir TallCakes. :)