28 November (Bulgaria ) within release Science and Technology (Physics and chemistry) goes into circulation Stamp International Year of Chemistry face value 0.65 Bulgarian Third lev
Stamp International Year of Chemistry in catalogues | |
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WADP Numbering System - WNS: | WAD:BG048.12 |
Stamp is horizontal format.
Science and Technology (Physics and chemistry) 1 sheet of 50 Stamp issuing authority - Bulgaria Posts PLC Printer - Bulgarian Philately and Numismatics