Pride of place amongst the many different objects on display in the museum is an amphora dated to 200 B.C., which was found in the River Sado estuary. This object has great historical significance for this industry, since it is a proof that the use of cork stoppers, the preferred seal of amphorae, goes all the way back to ancient times.
There are brief historical references of the use of cork stoppers by the Ancient Egyptians in the third millennium B.C. and also by other peoples. In Greece, an amphora dating to the fifth century B.C. with the cork stopper still in place was discovered in an ancient Greek marketplace in Athens. During excavation work in Pompeii, archaeologists also found amphorae with cork stoppers.
In 1952, Captain Cousteau recovered about seven thousand 2200 year old amphorae from the seabed off the Italian coast, some of them still sealed and containing wine.
Cork is also mentioned in odes, poems and important written works from different times, as a material used for a wide variety of purposes.