For most observers, including Bolton and Chickering, this was the definitive statement on the plate's origins. Photos of the plate appeared in textbooks. Copies were sold as souvenirs, and a copy was also displayed in the library of Sir Francis Drake High School in San Anselmo (the only high school named after the explorer). On several ceremonial occasions, copies of the plate were presented to Queen Elizabeth II. Yet rumors of E Clampus Vitus involvement in the plate continued to circulate.