Supposedly in existince since 1860 (at current location c. 1930s), Sam's Grill is an old downtown San Francisco institution. Most of the tables are in small wooden booths with curtained doors - fun and intimate. It's not hard to picture all of the business and romantic relationships that have occurred behind the curtains over the years. Unfortunately, the food --including the seafood they specialize in -- is mediocre. The swordfish was dry and tasteless, the stewed tomatoes were literally out of the can and heated (with the juice), the creamed spinach was OK, and the Sole Meuniere was so-so.