Mixed franking from 2 Din. With 7 Din. On properly franked domestic registered letter to Belgrad with postal stamp NIS 1 / 10 from 26.12.43 as well with censorship seal with censorship stamp 027 / N. The censor office Nisch and with arrival postmark on the back BEOGRAD 2 from 28.12.43; the cover was folded, expertized Brunel