Sweden. Facit 21j on cover, 12 öre pale blue. 12 öre on very fine, non approved printed matter with notations ”Circular” on reverse and ”i breflåda” (in letter box) on front. Sent insufficiently prepaid from PKXP Nr 1 NED 4.1.1875, via PKXP Nr 2 5.1.1875 to Great Britain. Sufficiently prepaid for route via Germany, but not via Gothenburg or Denmark. Postage due notation ”5” (d). Certificate and signature by Sjöman (1972). UNIQUE and interesting item.