The dating methods used were state of the art when the procedures were performed.
The beautifully restored ruins of the Eglise Toussaint (dating from the 13th century) have been incorporated into the Gal??rie David d'Angers (33 Rue Toussaint), which houses a unique collection of the sculptor's portrayals of notables including Balzac, Victor Hugo, Gutenberg, Paganini, and George Washington (here in Angers you'll see a plaster bust, the bronze of which stands in the United States Capitol).