Bosnia Overprint On Yugoslavia Stamps

Does anyone have any information on these overprints?
I know they were made about 1993.




Are there more examples somewhere?

private overprints made for the philatelic trade.

Three more issues for Bosnia/Herzegovina:





There are similar issues for Croatia, Macedonia, Montenegro, Slovenia, Kosovo, Vojvodina, Western Bosnia, Sanzak, Istria, Banat, Western and Eastern Slavonia, Casin and many et ceteras.

Philatelists, having an innate natural persecution complex, always assume these things are produced merely to milk them; in fact a lot of these may well have been produced for reasons of political advertising.

all kinds political groups and liberation causes print or overprint stamps to get their message out, over the past years we are starting to see dozens of French cities recently are finding overprinted Hitler Heads from 1945, liberated stamps with a overprint

Aren't there also many overprinted issues from Russia as well when the Soviet Union broke up?

There are hundreds for Russia and Ukraine as well.