Gilt bronze, size 7. Delicately made with round section band, 1.7mm width, with integral intricately toothed four bar bit. Such rings were used to open jewelry boxes, the ownership of which was prestigious. As a result, many, as here, were made for show only and worn where no such box existed. Professionally refurbished with the 24karat gold overlay restored. Jewelry gift boxed with certificate of authenticity.