Connecticut's 1787 copper coinage was produced not by the state directly but under private contract, with several authorized coiners — including Mark Leavenworth and others — operating simultaneously and sometimes sloppily. The "MB Left" attribution points to a specific die pairing within the sprawling Connecticut series, where obverse and reverse dies were mixed, matched, and occasionally reused across contractors, producing hundreds of documented varieties. The "over 1877 or 1887" element suggests a blundered date punch, a workman correcting or re-entering numerals that were struck incorrectly the first time.
PCGS numbers 352 and 355 reflect two closely related but distinct die marriages within this variety cluster.
Connecticut's 1787 copper coinage was produced not by the state directly but under private contract, with several authorized coiners — including Mark Leavenworth and others — operating simultaneously and sometimes sloppily. The "MB Left" attribution points to a specific die pairing within the sprawling Connecticut series, where obverse and reverse dies were mixed, matched, and occasionally reused across contractors, producing hundreds of documented varieties. The "over 1877 or 1887" element suggests a blundered date punch, a workman correcting or re-entering numerals that were struck incorrectly the first time.
PCGS numbers 352 and 355 reflect two closely related but distinct die marriages within this variety cluster.