Is this bread made like the old traditional way of baking Sourdough Starterbread? If not where can i purchase some?

Yes. And I QUOTE "We are The Original San Francisco Sourdough™. Today, we still bake our sourdough fresh every day using the same mother dough cultivated from a gold miner’s sourdough starter. We have extended our love of San Francisco and our place in its culinary history to offer a full range of the dining options—from specialty breads and casual breakfast, lunch and dinner—to a full service dining experience at Fisherman’s Wharf."

Yes

Yes you can !!