I asked a question and I got replies. So many that all I have done is say thankyou, if I discussed the items individually with each respondent I'd be at it 'til next week! I was actually amazed, as I often am at how little I know (and I'd describe myself as being at least reasonably well informed) about individual things. I'd happily thought that gold was the answer, apart from which SF at that time consisted of bars and brothels. But no, manufacturing and agriculture and other minerals. hopefully my character will be able to fill a ship or two!
Martin