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solar spectrum & Fraunhofer autograph

  • DBP_1987_1313_Joseph_von_Fraunhofer%2C_Sonnenspektrum.jpg
Short desc: solar spectrum & Fraunhofer autograph




This design is used by 1 stamp:
Germany 2/12/1987 80(pf) issue=Joseph von Fraunhofer 200th perf=14