EU57-DG : 1969 - FDC "de Gaulle - Referendum of 27 April" - flame "Strasbourg, seat of CE" Price €9.50
EU57EO-DG1 : 1969 - Env. CE "de Gaulle, Referendum 27 April" - flame "Strasbg, seat of CE" Price €12.00
EU57EO-DG2 : 1969 - Env. EP "de Gaulle, Referendum 27 April" - flame "Strasbg, seat of CE" Price €12.00
EU59EO-DG2 : 1969 - Env. EP "de Gaulle, Referendum of 27 April" - flame "Europe Rhenish" Price €12.00
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