This month marks the 75th anniversary of the formation of the Inverness Public Utility District in 1948. An open house is slated at the Inverness firehouse on Aug. 11 from 3 to 6 p.m. (all welcome!). The next day, Saturday, during the Inverness Fair, the Jack Mason Museum will unveil an exhibit honoring IPUD. The summer issue of the museum’s quarterly publication, “Under the Gables,” features an historical overview of the district written by yours…