I see this sort of thing often. Technically speaking, it is a form of out-of-register printing, but the degree to which it is is within normal tolerances.
Bottom line, don't get too excited, but good job for noticing it!
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BWJM, F.O.N.A.
Life Member of CPMS, RCNA, ONA, ANA, IBNS, WCS.
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Show Chair, Cambridge Coin Show.
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