Investigators from the Nelson-Atkins Museum of Art undertook this project to determine if worn-off or illegible hallmarks on silver and gold works of art could be imaged using scanning acoustic imaging techniques.
Hallmarks and engravings from a total of 26 silver, two gold and one copper alloy (bronze) objects were imaged during the two-year course of the project.
2004-02 Image Recovery of Worn-Off Hallmarks on Silver and Gold Objects
2004-04 Image Recovery of Worn-off Hallmarks on Silver and Gold Objects
2004-05 Ultrasonic Non-Destructive Imaging of Worn-Off Hallmarks on Silver: Preliminary Results
This research was made possible through Grant MT-2210-0-NC-21 from the National Center for Preservation Technology and Training (NCPTT).