What are this lines on the last 0 of 1900, the E in republica, the M mexicana. the B and L in republica look deformed, what you peeps think?
The lines are die cracks from a worn out die. As for the letters being deformed, it looks like the rim of the coin is damaged from about the U of REPUBLICA to just past the X in MEXICANA. That could be the why those letters look deformed. Lou