Artificial intelligent assistant

What is this kanji on a Meiji era 2-sen coin? I saw this picture of a Meiji era 2-sen coin in the 2013 game _Tomb Raider_): * Front: ![Front]( * Back: ![Back]( The front is easily readable, and explained by the caption: * []{} * []{}[]{} * The back is bit more difficult, but I think I got all but one: * []{} * []{} * []{} What is the one kanji before the []{}? Since the rest of it reads legitimate, I believe that's an actual kanji, but it's not very clear.

The character looks very much like ****, which means to swap or exchange. Since exchanges for , the coin just says or 50*2 coins exchanges for 1.

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