Barcelona, Spain, bronze 2-1/2 centimos de escudo, Isabel II, date not visible (1866-8), rotated second strike and off-center third and fourth strikes, NGC Mint Error AU 50 BN / Multi Struck.Cal-Type 54; KM-634.1.Dramatic error with three of the four strikes very clear (offset) but obscuring the date (the mint determined by the visibility of an eight-point star in the legend), light brown color with traces of original luster.From: Spain
($200-300)