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science & industry design type

  • Colnect-5046-708-Earth-Station-Sentosa.jpg
  • Colnect-3012-865-Oil-refineries.jpg
  • Colnect-3012-866--ldquo-Medical-Sciences-rdquo-.jpg
Short desc: science & industry




Used by 3 stamps: (See all uses as list)

Singapore 6/29/1975 10c d=satellite Earth stations perf=14
Singapore 6/29/1975 35c d=oil refineries perf=14
Singapore 6/29/1975 75c perf=14




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