Mixed franking from 1 Din. With 6 Din. On properly franked domestic registered letter to Belgrad with postal stamp KRAGUJEVAC 1/4 from 7.5.42 as well with censorship seal with censorship stamp 019 / Bgd. The censor office Belgrad and arrival postmark BEOGRAD 2/4 from 9.5.42, the cover was folded and has at the underneath defects from opening the cover, photo expertize Brunel