From a tasting of Noval Colhieta from 1937 to 1986 in the Noval shop in VNG on 30 Sep 07 - see review here
An extensive note says - weakest of the line-up.
I rated this as 7th out of 7
1986 Quinta do Noval Colheita
1986 Quinta do Noval Colheita
"The first duty of Port is to be red"
Ernest H. Cockburn
Ernest H. Cockburn