Mixed franking from 4 Din. With 5 Din. On correctly franked international registered letter to Düsseldorf with postal stamp BEOGRAD 1 / 45 from 25. 11. 41 as well with censorship treatment through the international country letter test place Vienna and arrival postmark DÜSSELDORF 1 from 4. 12. 41, slight tools crease and small tear on the right-hand side, otherwise good condition