Triple Consecutive Tier 1, 0-Leading 4th Series EngelHards. Believed to be between 100-150 minted. Incredible to think these found their way back to together after all these years. Amazing to compare distinct markings on each ingot only consecutive’s on the same production line would have. Truly a remarkable lot. It is uncommon to find 1 0-leading 10oz 4th series in choice condition let alone 3 consecutive ingots of such a low production run.