The provisional (1944-1946) pesetas of the Mint of Costa Rica
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| Autori: | , , |
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| Natura: | artículo original |
| Status: | Versión publicada |
| Data di pubblicazione: | 2025 |
| Descrizione: | Introduction: Coins were scarce in Costa Rica from colonial times until the mid-twentieth century. The Mint of Costa Rica provisionally produced 25 cent coins (pesetas) that, according to the Decree of 1944, were made of brass (Cu + Zn + Sn), but appear with different colors suggesting other mixtures of metals. Objective: To describe the characteristics of the coins, their elemental composition and the circumstances leading to their minting. Methods: The diameters, weights, engravings, and main defects of 60 peseta coins were determined. The composition of four coins, of different colors, was also analyzed by means of a Scanning Electron Microscope with X-ray dispersion (SEM-EDX). Results: From the sample, 48 coins weighed less than what was (3.410 g) specified in the Decree, two agree with it and 10 were higher. The majority had a diameter of 23.5 mm. The SEM-EDX analysis detected the presence of copper (68 to 96 %), zinc (12 to 23 %), tin (0.61 to 2.0 %) and traces of lead. However, the percentages of metals varied. Dye fractures, double impressions, and dye clashes are frequent. [Continue reading in the article] |
| Stato: | Portal de Revistas UCR |
| Istituzione: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| Lingua: | Español |
| OAI Identifier: | oai:portal.revistas.ucr.ac.cr:article/1080 |
| Accesso online: | https://revistas.ucr.ac.cr/index.php/rreflexiones/article/view/1080 |
| Keyword: | Numismatics Coins 25 cents Brass SEM-EDX Numismática Monedas 25 céntimos Bronce |