Wanted Francisco (Pancho) Villa Poster

So this week, I was sneaking through old stuff at grandma's and I found this really old poster. It was issued after the raid conducted by Pancho Villa's Division of the North on the small United States border town of Columbus, New Mexico in March 1916. Villa himself led the assault, only to be driven back into Mexico by elements of the 13th Cavalry Regiment stationed at the town. The attack angered Americans and President Woodrow Wilson ordered the Punitive Expedition in which the US Army invaded Mexico in an unsuccessful attempt to capture General Villa. The Proclamation offers a $5,000 reward for Pancho Villa and states "Any information leading to his apprehension will be rewarded."

I think it's a really great poster, I actually found two, but the thing is that I don't know if they're whether or not authentic. They look really old tho and well preserved. They're also sealed in plastic. I'm from Mexico but my grandma was born in El Paso, tx. So I think maybe she brought them from there. It would be really nice if someone, whether antiquarian or historian, could possibly tell if they're authentic.
Hope you like it!