Mixed franking from 3 Din. With 7 Din. On properly franked international registered letter to Liberec in the Sudeten territory with dispatch postal stamp BEOGRAD 1 / 1 from 22.7.44 and registered stamp Beograd 1 as well with censorship seal the international country letter test place Vienna and with arrival postmark on the back from Liberec; the otherwise very fine cover was at of the right and left page folded, expertized Krischke