Page 23. The religious medallion shown above on the right was discovered during excavations at the San Diego Presidio by Ellen Lennert. The medallion on the left was discovered by Walt Robbins, also an archaeological student at California State University, San Diego. The illustrations show the medallions in the condition they were found. To preserve their condition, no attempts have been made to clean them.
Page 23. Illustrations of the x-rays of the two medallions revealing the detail under the corrosion.