Gottfried Leibniz e il diagramma matematico

1996 - Gottfried Leibniz and mathematical diagram - - 100 Pf. - German pfennig - Copie 25,887,000 - Policromo - Michel DE01865 - Stanley DE02719 - Scott DE01933 - Yvert Tellier DE01697 - 6/13/1996 - comb 14 - 43 x 26 mm - Offset