Stack's Bowers & Ponterio
October 2022 Hong Kong Auction 3-8 Oct 2022
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Though previously called a pattern issue, likely arising from the placement of this piece with "foreign-made machine mint products" in CCC, it is more likely not a trial striking. Though elusive, there appears to be too many produced to be patterns, with 23 on the PCGS population report. Additionally, Hsu places this coin as a regular circulation strike along with other contemporaneous Cash.
From the Kenneth Bressett Collection.
Estimate: $1000 - $2000