In 2000, a well-preserved, c.21 m-long shipwreck, Doel 1, was found upside-down in a silted-up creek near the river Scheldt ( Belgium). An interdisciplinary research project was initiated, including 3 D registration of all timbers, wood species identification, dendrochronology and archaeobotanical analysis of the caulking material. Doel 1, of which 70% is preserved, displays the construction features of a cog. Unseasoned wood was used and dated by dendrochronology to AD 1325/26. Remarkable features include the symmetrical layout of the bottom planks, the atypical arrangement of the frames to the fore, and evidence of partial dissassembly of the ship after intensive use. [ABSTRACT FROM AUTHOR]