It looks genuine. The nominal weight is 25 g, with a bit of wear 24.8 g is within limits. The edge inscription is made with a segmented collar, and the vertical lines you see are the borders between the segments. The collar had three segments, so you should expect to see three lines at equidistant positions around the edge.
As far as I can tell, it looks like a perfectly normal well circulated coin from the era. I believe that the vertical lines were simply part of the design of the edge lettering.
Genuine. In relation to other peer World crown sized coins of this age and condition, this coin is easily obtainable, and a reasonable purchase for a reasonable amount.
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