Stack's Bowers & Ponterio
May 2023 World CCO Auction 16-19 May 2023
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A few theories have come out about the possible use of these countermarks. Most believe they are the initials of well-known merchant, Rogelio Alvarado, of Guayaquil. Another theory is they were used to pay prisoners. Regardless of the use, they are an interesting part of countermarked numismatics.
Estimate: $60 - $100