Date:creation date: 1672-1695, alteration date: east side wall replaced by arched masonry wall, 1738-1740, alteration date: other three walls vaulted, 1752-1756, creation date: enlargement of the ravelin, 1762
G. E. Kidder Smith Image Collection A collection of images of taken by G. E. Kidder Smith (1913-1997), who was an architect, author, and architectural photographer.