The papyrus raft seen here, the "Ra II", was used by this Norwegian anthropologist and explorer
[DOC] [TLE] Thor Heyerdahl Dies - The Washington Post [PAR] Apr 19, 2002 ... Thor Heyerdahl, 87, the Norwegian explorer and archaeologist who was best 
known ... Once there, he became more interested in cultural anthropology, ... a 
papyrus reed vessel similar to those used by the ancient Egyptians to see ... 
again the next year with another papyrus reed raft, which he called Ra II.