Here is a nice set I recently scanned to add to my image gallery. I really like this set, nice, crisp designs.

If you notice on the bottom stamp, with the National Arms, there are 5 torches, representing the 5 ethnicities (Serbian, Slovenian, Croatian, Macedonian, and Muslim). In 1963, the National Arms was modified to have 6 torches, representing the 6 constituent Republics (Serbia, Slovenia, Croatia, Macedonia, Montenegro and Bosnia). This move effectively raised the status of Montenegro to be on the level with the other states (which was a good thing for the Serbian led government, as Montenegro always accepted their role as Serbia's puppet), while at the same time, somewhat un-recognizing the Muslim populations of Bosnia and Kosovo.