This is an attractive display card showing four different aviation scenes. Each of the four stamps measures 1 1/4″ x 1 1/2.” The stamps are for 1.25 Kroner, 2.00 Kroner, 2.80 Kroner, and 4.00 Kroner from Norway. The display card measures 3 3/4″ x 4 1/2.” It was issued for a special philatelic display that took place in Oslo, Norway, 13-22 June 1980. Sets like this are quite popular with stamp collectors. They were never sold for use on everyday mail.