MARC21       008a'18-21  Illustrations
     Values: 
              #   No illustrations
              a   Illustrations
              b   Maps
              c   Portraits
              d   Charts
              e   Plans
              f   Plates
              g   Music
              h   Facsimiles
              i   Coats of arms
              j   Genealogical tables
              k   Forms
              l   Samples
              m   Phonodisc, phonowire, etc.
              o   Photographs
              p   Illuminations