I'm with platyfish124 on this one. The edges of the blank area do not look like they should when the strip is missing, and there would be some intaglio printing in the blank area, most notably a "10" and the coat of arms.
This note, in my opinion based on the photo provided, has been tampered with and the strip removed after reaching circulation.
(The strip may even have found a new home attached to a counterfeit note).
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BWJM, F.O.N.A.
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