Vintage UnoAErre UNO-A-ERRE 18k yellow gold 24” chain necklace

Vintage UnoAErre UNO-A-ERRE 18k yellow gold chain necklace. 4.75g. 2mm thick. 24” long. "UNO-A-ERRE" (UnoAErre) is a famous, historic Italian goldsmith company from Arezzo, Italy, known for high-quality gold, silver jewelry, and fashion accessories since 1926. The name "UnoAErre” was derived from the initials "A.R." (Arezzo) and the word "Uno," meaning "one" in Italian, signifying the brand's commitment to excellence and craftsmanship. They are recognized globally for craftsmanship, using innovative tech, and creating both classic and trendy pieces. The marking "UNO-A-ERRE 750 1AR" on jewelry indicates it is made by the Italian jewelry manufacturer UnAErre, "750" signifies the gold purity (18 karats, or 75% gold), the "1 AR" signifies it was made in the Arezzo region of Italy.