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Description: International Year of Chemistry
Global Stamp Competition for students: Chemistry as a Cultural Enterprise
Stamp design by Vasilena Vasileva (Bulgaria) - winner in the 12-14 age category
Date of issue: 28.11.2012
Denomination: 0.65 Leva
Quantity: 12 000
Stamp size: 43 x 32.5 mm
Perforation: 13
Sheets: 5 x 10
Printing process: offset
Designer: Martin Rusev
Cover (stationery): No