Vintage Pyrex Butterfly Gold Mixing Bowls (400 Series)

This is a complete set of four vintage Nesting Mixing Bowls manufactured by Pyrex, featuring the popular Butterfly Gold pattern. This pattern, which was originally introduced in the early 1970s, depicts stylized five-petaled flowers and butterflies in a distinctive mustard-yellow or harvest-gold hue. The set includes two white opal glass bowls with gold-colored graphics (401 and 403 sizes) and two harvest-gold bowls with white graphics (402 and 404 sizes). Constructed from durable borosilicate glass, these bowls are known for their heat resistance and heavy-duty feel. The craftsmanship is typical of mid-century industrial kitchenware with smooth, rounded rims and a polished finish. Visibly, the bowls appear to be in good vintage condition, retaining a strong gloss. There are minor indications of shelf wear on the bottom surfaces and some light silvering or utensil marks typical of age inside the vessels. No major chips or cracks are immediately apparent in the image. The pattern remains crisp and intact without the significant 'dishwasher-safe' dulling often found on vintage sets of this period. The 'Butterfly Gold' series is a staple of Americana kitchen decor from the 1970s and 1980s.