1920 JUGOSLAVIJA YUGOSLAVIA

Welcome to Stamp Bears, alex13!

You'd have to show us some pics, of either the album pages or of individual stamps that you think are valuable.

Yugoslavia was formed 1918-1920, and of the issues from then to pre-WWII, there are maybe half-dozen sets that catalog for more than $100. The higher premium items are mostly about 1 dozen sets of occupation issues of the early 1940s, with the high premium often for genuine postally used stamps -- those sets can catalog in $100s to $1000s, but would require expert certification.

The pre-1918 (pre-Yugoslavia) stamps you would have to be more specific. I assume that is what you meant by "Slovenian, Croatian, Bosnian, Montenegrin, Serbian - from same period".

I can't help you with the proofs. But maybe others, such as rayb, can help.

If it is indeed a "rare" collection, your best option is to submit it to a major auction house for sale. Nobody with lots of money to spend will buy a rare collection unless it has a known history or it has passed through inspection by a major auction house.

Please post some pics of the stamps/pages you think are valuable. Thank you!

k