"A hemispherical mirror image of Bin 407," Penfolds's chief winemaker, Peter Gago, said with a smile. It was only then that I got that 704 is 407 backwards. "We are able to access vineyards in Napa that others can’t access," he went on to say, referencing Treasury Wine Estates' considerable landholdings in this region. Beringer, Sterling Vineyards, Stags’ Leap Winery, Beaulieu Vineyards, etc. "We have sensitively used small amounts from our top vineyards—requested rows in the Burgundian model."