Elegant Vintage 5" Crystal and Amethyst Wine Stem Set 3

These Depression era 5" Wine Stems have an amethyst bowl and simple crystal stem and base; all 3 are in perfect condition. I haven't been able to identify the maker or pattern, but the quality is such that they must be from one of the elegant glass makers (Cambridge, Fostoria, etc.). The color matches Cambridge's Amethyst exactly. Each holds 3 oz., the standard wine size of the era, better for use as a cordial today.