CH 1982 Stamp Day Reinach AG, cover cancelled with machine flag 3.12.82 5734 Reinach (AG) imprint Postwerbeflagge

Switzerland 1982 Stamp Day Reinach AG,
official cover "Tag der Briefmarke - Di dalla Marca postala - Journée du Timbre - Giornata del Francobollo - Reinach AG 1982 -
Illustration stagecoach, Offizielle Ausgabe VSPhV / USFS / USPhS",
with imprint "Erste Postwerbeflagge zum Tag der Briefmarke",
with Pro Juventute stamps, without address, cancelled with machine flag
"5.12.82 5734 Reinach (AG) - Tag der Briefmarke 1982 - 3.-5. Dezember REPHILA 82 - REINACH (AG) - 50 Jahre PHOWUS - Philatelistenverein Oberwynen-+ Seetal",
luxury conservation.