Stamps of San Marino, paintings by Maria Busignani design type, missing design, not overprinted
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postage
1979, Sep 6 International Year of the Child issue - paintings by Maria Busignani unwmk (no perf info)
| - | 120l | multi | Friendship by Marina Busignani | |||
| - | 170l | multi | — | — | Equality by Marina Busignani | |
| - | 220l | multi | Love by Marina Busignani | |||
| - | 350l | multi | Existence by Marina Busignani |
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