Needi seibide toorik. Sigtunas on taolisi leide seostatud laevaehitusega (Edberg 2013).
Kirjandus:
Edberg, R. 2013. Subterranean Maritime Archaeology in Sigtuna, Sweden: Excavated evidence of Viking Age boat building and repair. – International Journal of Nautical Archaeology 42(1), 196-204.