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20 Cents - Elizabeth II Sonic Boom
| Issuer | Central Bank of Solomon Islands |
|---|---|
| Year | 2019 |
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| Value | Log in to see details |
| Currency | Dollar (1977-date) |
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| Obverse description | Log in to see details |
|---|---|
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| Obverse lettering | ELIZABETH II · 2020 · SOLOMON ISLANDS IRB · 20 CENTS · |
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| Reverse lettering | 1969-2019 CONCORDE 50 |
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| Additional information |
The "Sonic Boom" is part of a broader Solomon Islands promotional series aimed squarely at the novelty collector market, leveraging the islands' liberal commemorative minting arrangements — the country has long permitted foreign minting houses to produce coins under its authority with minimal restriction. This particular piece was almost certainly struck by a European or East Asian private mint, not by any domestic facility.
Silver-plated iron is a cost-reduction substrate common to this class of issue; the iron core corrodes aggressively if the plating is breached.