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postage
1926 unwmk p. 11.5
| X | 50s | grayblk | ruined cathedral |
1950, Jul 2 Dimitrov death 1st issue (no perf info)
| - | 15l | grayblk | Dimitrov signs Constitution |
1955, Dec 1 Russian-Bulgarian friendship issue p. 13
| - | 1l | grayblk | Vladimir Mayakovsky |
airmail
1946, Jun 15 1946 air issue
| - | 4l | grayblk |
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