Franking with different colours from 1 Din., 3 Din. And 4 Din. (2) on correctly franked international registered letter the 2. weight step over 20 g to 40 g to Cissie with postal stamp BEOGRAD 1 / 26 from 28.7.43 and unmailed R stamp as well with censorship seal the international country letter test place Vienna and with arrival postmark on the back Cissie / a from 4.8.43