Brockage Also see |Brockages| |and| |Clashed| |Dies|. A brockage is an error coin. One side (most of the times the obverse) is normal, but the other side (usually the reverse) has an incuse (in negative) image of the other side, replacing its usual types and inscriptions. | Brockage Also see |Brockages| |and| |Clashed| |Dies|. A brockage is an error coin. One side (most of the times the obverse) is normal, but the other side (usually the reverse) has an incuse (in negative) image of the other side, replacing its usual types and inscriptions. |