This postcard shows the souvenir sheet issued for Norway's Stamp Day (Frimerkets Dag) on October 17, 1986. The subject is Norwegian Working Life (Labor) II - The paper industry.
The purpose of Stamp Day is to promote the use of stamps and stamp collecting. In Norway Stamp Day was first held in 1970. At first Norway's Stamp Day was the Friday closest to 9 October "World Post Day." Different countries celebrate Stamp Day on different dates, usually in October or November. Even within the same country, the date varies. The 2013 Norwegian Stamp Day was October 4.
This is a post for Sunday Stamps at Viridian's Postcard Blog