San Bernardino County Postmark Collection. Approximately 500 covers and cards; most 20th century to modern, some early postmarks with strength in 1900-50's, including Arrowhead Springs, 1898 Colton, 1887 Lugonia, 1897 Messina, Patton, Upland, section of 20th century San Bernardino city (no photo). Estimate  $500 - 750. $0