Catalog
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| Issuer | Banco Central do Brasil |
|---|---|
| Year | |
| Type | Coin pattern |
| Value | Log in to see details |
| Currency | Log in to see details |
| Composition | Log in to see details |
| Weight | Log in to see details |
| Diameter | Log in to see details |
| Thickness | Log in to see details |
| Shape | Log in to see details |
| Technique | Log in to see details |
| Orientation | Log in to see details |
| Engraver(s) | Log in to see details |
| In circulation to | Log in to see details |
| Reference(s) | Log in to see details |
| Obverse description | Log in to see details |
|---|---|
| Obverse script | Log in to see details |
| Obverse lettering | Log in to see details |
| Reverse description | Log in to see details |
| Reverse script | Log in to see details |
| Reverse lettering | Log in to see details |
| Edge | Lettered: ORDEM E PROGRESSO |
| Mint | Log in to see details |
| Mintage | ND |
| Additional information |
This is a pattern piece — KM# Pn102 designates it as a trial or proof-of-concept strike, not a circulating issue. The Banco Central do Brasil conducted extensive testing during the Real plan's preparatory phase in the early 1990s, evaluating multiple planchet configurations before the currency launched in July 1994. The "flat disc" designation distinguishes it from edge-lettered or security-edged variants tested concurrently, suggesting this was one of several competing specifications submitted for the 50 centavos denomination before a final standard was approved.