Mixed franking from 3 Din. With 12 Din. On correctly franked home special delivery registered mail letter to Belgrad with postal stamp PETROVAC POZAREV / 2 from 27.12.43 and unmailed registered mail stamp as well with censorship seal with censorship stamp 064 / Bgd. The censor office Belgrad and with arrival postmark on the back BEOGRAD 2 from 29.12.43; the cover has negligible custom traces, expertized Krischke