|Birds: 1999 Kosovo Overprints|
The top 20c stamp shows the normal overprint, the bottom stamp having a light second overprint applied. Seen on a single sheet with the complete first column of 10 stamps having the doubling effect. The rest of the stamps on the sheet have the normal overprint.
Double Specimen Overprint
Specimen overprint doubled (top) with normal at bottom.
Seen on a loose single stamp.
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