
Sure do, doesn't it. Even enlarged! But it isn't a Mintmark, 1) Too Big 2) No Serifs (end thingies) 3) Different color than devices around it.
It is some form of Post Mint Damage ( PMD), quite common during travels. It may be damaged metal pushed around, but doesn't look like it, looks more like gunk adheared to the coin. Pure acetone bath may clean it off and solve the mystery, so would picking at it with a knife blade





















