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inventions (1988) design type

  • Colnect-1020-140-Kerosene-1846.jpg
  • Colnect-1020-141-Marquis-Wheat-1909.jpg
  • Colnect-1020-142-Electron-Microscope-1938.jpg
  • Colnect-1020-143-Cobalt-Therapy-1951.jpg
Short desc: inventions (1988)




Used by 4 stamps: (See all uses as list)

Canada 6/17/1988 37c d=Kerosene 1846 perf=12.5x13.25
Canada 6/17/1988 37c d=Marquis Wheat 1909 perf=12.5x13.25
Canada 6/17/1988 37c d=electron microscope 1938 perf=12.5x13.25
Canada 6/17/1988 37c d=Cobalt Therapy 1951 perf=12.5x13.25