Mixed franking from 1 Din. With pair over 4 Din. On correctly franked domestic registered letter to Belgrad with postal stamp PROKUPLJE / 1. from 12.10.42 and R stamp as well with censorship seal with censorship stamp 009 / N. The censor office Nisch and transit stamp NIS 1 / 12 from 13.11.42, the cover is right slightly cut in, otherwise excellent condition, expertized Brunel