9 May 1958

C.E.C.A. (Communauté Européenne du Charbon et de l'Acier in French) or E.G.K.S. (Europese Gemeenschap voor Kolen en Staal in Dutch) are in fact the European Coal and Steel Community. This organisation still exists today, but is now part the European Community. See also Official website of the European Coal and Steel Community

This organisation was quite unknown and philatelic material are limited.

The Official Expo 58 cover had the special cachet as used for the belgian FDC of Europe in 1957. It was edited by Campo Rodan.

The Official edited cover with logo of the organisation (edition is not identified). The cachet depicts the celebration of the 8th Anniversary of the organisation.

A special meter cancellation of the CECA - EGKS organisation - dated 22 July 1958 - from Brussels. (r)

Another special meter cancellation of the CECA - EGKS organisation - from Liege. (r)

Large Expo 58 cover with different cancellations. (r)

CECA-EGKS Maximum card. (r)

Since the Atomium was mainly made of steel, it was certain important to relate CECA with the Atomium. Two cards with Atomium stamps on Atomium covers and the with the First Day Cancellation - serie is known for all 4 stamps with Atomium ( nice set)