CH 2002 Stamp Day Lyss BE, postal card cancelled 29.11.-1.12.2002 3250 Lyss

Switzerland 2002 Stamp Day Lyss BE,
official postal card of Swiss Post (postal stationery)
"Tag der Briefmarke 2002 - Lyss - Jurawässerkorrektion -
Journée du timbre 2002 -  Lyss - Correction des eaux du Jura -
Giornata del Francobollo 2002 - Lyss - La correzione dei corsi d'acqua del Giura
Copyright Design: Michèle Berri - 50 Jahre Motiv-Sammlerverein",
with printed franking, without address, cancelled "29.11.-1.12.2002 3250 Lyss - Tag der Briefmarke", luxury conservation.