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The postcard is from Postverkets Tryckeri in 1974, encouraging people to send postcards to appreciate the beauty of Sweden and keep it clean. Sending postcards is an easy way to stay in touch and is just as welcome as letters. Posten aims to help preserve Swedish nature through this initiative. Sweden is known for its stunning landscapes, including forests, lakes, and mountains. Postverkets Tryckeri was a printing house for the Swedish postal service, producing various printed materials, including stamps, postcards, and envelopes.