Physicians (1971) design type (#23689)

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Switzerland 9/23/1971 10c dkbrnol issue=physicians 1971 d=Yersin perf=11.5

Switzerland 9/23/1971 20(c) dkblgrn issue=physicians 1971 d=Auguste Forel perf=11.5

Switzerland 9/23/1971 30(c) car issue=physicians 1971 d=Jules Gonin perf=11.5

Switzerland 9/23/1971 40c dkgraybl issue=physicians 1971 d=Robert Koch 1843-1910 bacteriologist perf=11.5

Switzerland 9/23/1971 80c pur issue=physicians 1971 d=F. G. Banting perf=11.5

physicians (1971) design type