Sweden. Facit 20k cover, 6 öre on exceptional printed matter sent from STOCKHOLM 12.4.1877 to Belgium. Forwarded from GAND 15.AVRIL.1877 to EVERGEN 16.AVRIL.1877. Only two pm's recorded to Belgium with Circle type 14 of which this usage with UNIQUE combination according to Ferdén. Certificate HOW 3, 3, 3, 3 (1988). Ex. Kihlströms 1972 and Postiljonen 2011. SEK 40000