anchor.diff:  Strip - Nickel;75.06
   Strip - Plastics;39.19 or 39.20 or 39.21
   Strip - Rubber;40.05 or 40.08 or 40.17
  -Strip - Tin;80.04
  +Strip - Tin;80.07
   Strip - Zinc;79.05
   Stroboscopes;90.29
   Strong Boxes, Base Metal;83.03
  
positive.code: Powders - Magnesium;81.04
  Powders - Nickel;75.04
  Powders - Scouring;34.05
  Powders - Tin;80.05
  Powders - Zinc;79.03
  Power ~Measuring Instruments;90.30
  Power Supplies - For Computers;85.04
  
negative.code: Plates, Metal - Lead;78.04
  Plates, Metal - Magnesium;81.04
  Plates, Metal - Nickel;75.06
  Plates, Metal - Tin;80.07
  Plates, Metal - Zinc;79.05
  Plates, Paper;48.23
  Plate Warmers, Non Electric, Domestic, of Iron or Steel;73.21
  