Herb Caen wrote about the Tool Box in his famous San Francisco Chronicle column: When the Tool Box opened later that year on the corner of Fourth Street and Harrison, it was the first leather bar located in the South of Market. “The first dedicated leather bar in San Francisco was the Why Not, which opened briefly in the Tenderloin in 1962. According to renowned leather historian Gayle Rubin in her book The Miracle Mile: South of Market and Gay Male Leather, 1962-1997: