Series 1498: Aerial Photograph Indexes (Coded Grid on Miss. Map). 1954-1997.
Highway Dept. (RG 55)

Series 1498: Aerial Photograph Indexes (Coded Grid on Miss. Map). 1954-1997.
Highway Dept. (RG 55)

      Map indexes to aerial photographs (Series 152) used by the Highway Department. The index for each county was made by superimposing a coded grid format on Mississippi general highway maps. The coded grid identification system is made up of alpha/numeric codes or numeric codes which represent a specific geographic location.

See also:
      Series 152: Aerial Photographs. 1936-1977.
      Series 1499: Aerial Photograph Indexes (Composite Photo Map Indexes). 1935-1994.
      Series 1507: Aerial Photographs (enlargements): 1974, 1983, n.d.