Mixed franking from monasteries over 12 Din. With Serbia I over 5 Din. On properly franked large-sized international registered letter the 5. Weight step over 80 g to 100 gr to Prague in the Protectorate Bohemia and Moravia with postal stamp BEOGRAD 1 / 21 from 11.7.42 as well with censorship treatment through the international country letter test place Vienna; small format contingent custom traces