30 Pfennig
Bundesrepublik Deutschland
Issued by the Bundesrepublik Deutschland on 24 August 1966, for the 250th anniversary of Leibniz's death.
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Gregory Brown
513 Agnes Arnold Hall
Department of Philosophy
University of Houston
Houston, TX 77204-3004
513 Agnes Arnold Hall
Department of Philosophy
University of Houston
Houston, TX 77204-3004
