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disposed of them when I discovered they were not an official issue -
Strangely it is the fact that I believed they were not an official issue which persuaded me to buy them. I'm currently preparing a Cinderella Class competition entry on the way that after the breakup of Yugoslavia people in the new states disposed of the masses of surviving unwanted/unusable preinflationary definitives by printing political slogans/symbols on them. I thought these Target booklets would make a good final sheet, showing a slightly different tack - don't overprint the stamps; put them inside a carnet on which you have much more space to print your political message.
Happily it seems to be confirmed that the SRJ government/PTT didn't authorise them: so they are eligible for Cinderella Class.
(Though the Mods will probably smack my legs now for putting the question in the World Stamp Forum rather than the Cinderella...

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