Stamps of Bulgaria, Conference on European Security and Cooperation issue
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postage
1974, Oct 29 Conference on European Security and Cooperation issue unwmk (6 stamps)
| - | 13s | multi | doves, p. 13x13.25 | — | — | |
| - | 13s | multi | map of Europe, p. 13x13.25 | — | — | |
| - | 13s | multi | Palm Fronds, p. 13x13.25 | — | — | |
| - | 13s | multi | inscription, p. 13x13.25 | — | — | |
| - | 18s | multi | map of Europe in pigeon, p. 13 (1975) | |||
| - | 1234 | multi | missing Color Vivid Purple on Decoration Field Field 6 (1975) | — | — |
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