All matrix/runout info stamped, except where the second set of 5990545 - A MCL, (including sides B, C, and D) is etched. Barcode: 8435395504079 (Scanned) Barcode: 8 435395 504079 (Text) Matrix / Runout: 276016E1 1812230 5990545 5990545 - A MCL TML-M (Side A) Matrix / Runout: 276016E2 1812232 5990545 5990545 - B MCL TML-M (Side B) Matrix / Runout: 276016E3 1812234 5990545 5990545 - C MCL TML-M (Side C) Matrix / Runout: 276016E4 1812236 5990545 5990545 - D MCL TML-M (Side D)