franking with different colours from 1 Din. (on the back), 2 Din. and 7 Din. (2) on properly franked domestic registered letter of the 2 weight rate over 20 g to 250 g with advice of delivery to Belgrad with posting cancel SOPOT / 1 from 12.3.43 as well with censor label with censorship cancel 027 / Bgd. the censor office Belgrad and on the back arrival postmark BEOGRAD 2 / 4 from 13.3.43; the cover was folded, expertized Brunel