23rd International Mathematics Congress, Berlin.

23º Congreso Internacional de Matemáticas, Berlín.

Owner	Nemesio Ramirez Lemos
Country	Germany
Colection
Face value	110Pf.
Measures	35x35mm.
Year	1998
State	Used
Status	Interchangeable
Category	Commemorations
Format	Diamond
Color	varios
Other information	Perforated stamp
visualizations	152