It's TERRIBLE outside — Winter's last hurrah, I hope! A strong wind is turning the treetops into giant fans and blowing the lovely pink blossoms off the wild plum tree in my backyard, the sky is gray and heavy. No sunny California today –you can feel the approaching storm in the air. But I'm safe and dry inside, still warmed by my memories of the amazing gala opening at the Old Mint, on February 11th, of the San Francisco Historical Society's celebration of my book, "Forbidden City: the...