MARC21       007m'13  Refined categories of color
     Values: 
              a   3 layer color
              b   2 color, single strip
              c   Undetermined 2 color
              d   Undetermined 3 color
              e   3 strip color
              f   2 strip color
              g   Red strip
              h   Blue or green strip
              i   Cyan strip
              j   Magenta strip
              k   Yellow strip
              l   S E N 2
              m   S E N 3
              n   Not applicable
              p   Sepia tone
              q   Other tone
              r   Tint
              s   Tinted and toned
              t   Stencil color
              u   Unknown
              v   Hand colored
              z   Other