Type I ships with similar design and fish symbol on top of prow are well attested in several Cycladic representation dated around 2500-2000 BC.This type of ship was more likely the earliest wreck discovered near the island of Dokos.
Post surmounted by horizontal element, from which hangs banner-like device.
Navigation in the Aegean, has been testified by the tools made of Melian obsidian which were found in Franchthi Cave in Hermionid (at the eastern coast of the Peloponnese, a distance of 80 nautical miles (approximately 150 kilometers) from Melos.
Tools made of Melian obsidian also found on Crete (Knossos) and on Cyprus, substantiate the existence of sea routes in the Aegean from the Early till the Final Neolithic (6800-3200 BC).
One of the earliest cycladic Type I ship representation is on a fragment of white marble from Naxos dated around 2500-2000 BC. Stern rises near vertically, surmounted by appendance departing obliquely aft to level out to horizontal at half its lenght. Another early large Aegean Type I ship is represented in this Cycladic terracotta "frying pan" from Syros dated around 2500-2000 BC.
Two oblique projections from hull, understood as tholes. This multi-oared galley has a long vertical prow with a fish symbol mounted on top, perhaps acting as a wind vane to detect wind direction relative to the vessel.