Monday, May 2, 2011

International Congress of Mathematical Sciences, Karachi


Date of Issue: July 14, 1975
Size of stamp: 32.50 x 44.50 mm
Size of print: 29.50 x 41.50 mm
Perforation: 13C
Sheet Contents: (10 x 5) 50 stamps
Denomination: 20p
Printing Process: Litho Offset
Quantity: 5,00,000
Designer: Mukhtar Ahmed
Printer: Pakistan Security Printing Corporation, Karachi

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