CH 2004 Stamp Day Dietikon ZH, postal card cancelled 27./28.11.04 Basel - Basler Tage der Briefmarke

Switzerland 2004 Stamp Day Dietikon ZH,
official postal card of Swiss Post (postal stationery) 
"Tag der Briefmarke 2004 Dietikon - Energie aus Wasserkraft -
Journée du timbre-poste 2004 Dietikon - Enegie hydraulique -
Giornata del Francobollo 2004 Dietikon - L'acqua, fonte di energia -
Stamp Day 2004 Dietikon - Hydroelectric power",
with printed franking, without address, cancelled "27./28.11.04 4000 Basel - Fussballstadt Basel FCB - Basler Tage der Briefmarke", luxury conservation.