Postal stamp over 30 Din. From the franking series Serbia I on marked envelope with registration label CUPRIJA as well with postmark CUPRIJA from 1.1.42, the cover is not transported become, the 30 Din. Stamp is in cancelled condition very rare, expertized Krischke as letter piece, Michel 1400,- already for the single stamp! - illustration have a look at the page with illustrations 3