AP63a+b : 1967 - FDC session European Parliament 'Treaties of Rome, Schuman, Adenauer'

N°AP63a+b  : pack of 2 envelopes "European Parliament session, Strasbourg 8-12.05.1967"
Postage stamp on official business «Flag of Europe» and «Europa 67»
Slogan cancellation9.5.1967 European Parliament and handstamp8.5.1967«Commemoration of the Treaties of Rome, of Schuman's Plan and solemn homage in memory of the chancellor Konrad Adenauer»