Can't say it any simpler than wikipedia: "Opened by Maurice Bernstein in 1912, Bernstein's was known worldwide for its unique entrance, a ship's bow jutting into the sidewalk. The ship was a faithful reproduction of Christopher Columbus's Nina."

Anything else?

"Bernstein's had seven colorful dining rooms: the Fisherman's Cave, the Pilot Room, the Sun Deck, the Main Salon, the Cabin Nooks, the Upper Deck, and the Porthole Counter."

Hmm - sounds fun, but surely there's something more colorful, more old-San Fran about the place.

"The restaurant was also world famous for its Coo-Coo Clams from Coo-Coo Cove."

Bingo.