St. Gervais 2 (ca. 610)
The major cargo of this little freighter was corn, along with amphoras filled with pitch. It was a deep hull that had many similarities to the Yassiada Byzantine ship, but there were also some notable differences. While this vessel’s planking seams were aligned with small, unpegged mortise-and-tenon joints, such joinery occurred only in the ends of the ship. Centrally all planks were nailed directly to the frames, which were nailed to the keel. Two sets of wales were separate from the other planking; they were nailed to the outer surfaces of the regular strakes. Also, the planking was fastened to the frames with nails and treenails below the waterline; above it, they were attached only by treenails. A bilge pump was well preserved, and there was part of a hearth aft of the pump. 1
1. Richard Steffy, INA Shipdata Project, Texas A&M University.