(San Bernardino) Doble, Cal., Jan. 5, 1904, cds and killer duplex (SBE-2050) on M.O.B. Post Office cover to San Bernardino, Very Fine. Estimate  $300 - 400. Only three examples are known from this ghost town. One of the examples is a receiving mark and this is the best example of the known mark from this location. This Post Office operated for about six years; its location is at time under water at the eastern end of Big Bear Lake. $0 (Image)