The discovery is very recent to the point of not having been dated yet.
Here’s a photo (private party, sez do not archive, etc) from the 26th, iow, 3 days ago.
http://s2.reutersmedia.net/resources/r/?m=02&d=20190627&t=2&i=1402077544&r=LYNXNPEF5Q1AE&w=500
And the Roman era spans nearly 2000 years, btw.
Typical cargo of the time, wine and olive oil, probably some dried fruits and cheeses as well.............................