E. Clark’s Patent Drawing for Buoy Forts, 4/2/1812Series: Restored Patent Drawings, 1837 -

E. Clark’s Patent Drawing for Buoy Forts, 4/2/1812

Series: Restored Patent Drawings, 1837 - 1847

Record Group 241: Records of the Patent and Trademark Office, 1836 - 1978

Image description: Colored drawing of a rectangular, walled vessel with square holes in the walls for cannon. Two men are firing a cannon toward ships in the distance.