CH 2004 Stamp Day Dietikon ZH, cover cancelled 2. Dezember 2004 8953 Dietikon with add-on cancellation Serfontana

Switzerland 2004 Stamp Day Dietikon ZH,
official cover "LIMMATTALPHILA 04 Dietikon 10.-12. Dezember 2004 - Energie aus Wasserkraft - Tag der Briefmarke - Journée du Timbre - Giornata del Francobollo - Di dalla Marca postale - Offizielle Ausgabe VSPhV / FSPS / FSFS",
with red add-on cancellation "GIORNATA DEL FRANCOBOLLO Serfontana 10./11.12.2004 - 1854 - 150 anni Strubel",
with Stamp Day stamp (SBK 1139, Michel 1896), without address, cancelled "12. Dezember 2004 8953 Dietikon - Tag der Briefmarke", luxury conservation.