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thank you for answer , i know that 3 mark must be 16.6 gr , but i repeat that this coin weight exactly as thaller -18.1 gr. moreover the legend on the side of a coin is thaller legend -not 3 mark . and other parametres are exactly! as thaller coin. is it any reason to put PM to fake coin ? as my little experience - PM on german coins it is or mosambic province or probe mint ... but not a fake .
i see the patina is allmost 100% not real , but this is not telling me that it must be fake . pls give me any reason -not weight , why it is fake .
thank u .