Vintage enamel gold and blue flower earrings

These vintage pierced earrings of unknown date feature beautiful, sparkly blue and gold tone flowers with great detail. They are truly beautiful! Each earring is approximately 3/4 inch in diameter. They are unsigned and in excellent condition. No known defects. Vintage items are preworn and may show signs of wear. I try my best to describe any flaws, but I am not a professional jeweler and there may be something missed.