  In the past there must have been intriguing opportunities to buy up Ibicenco antiques and ship them home.
There has never been an opportunity to buy Ibicenco antiques or ship them home.
mnli hypothesis: There has never been an opportunity to buy Ibicenco antiques or ship them home. premise:   In the past there must have been intriguing opportunities to buy up Ibicenco antiques and ship them home.