I'm inclined to agree with Vic that they may be two separate stamps. I checked my Facit catalog and can't find anything like this pair. The 5 öre stamp was issued in 1939 and the 10 öre stamp was issued in 1948.
i've looked at this several times; I think the 5 ore is actually on top of the 10 ore stamp; it doesn't appear to be a PAIR, but two unrelated singles that are stuck together
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